SYSTEM DIAGRAM
TERMINALS OF ECM
HINT:
The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
Terminal No. (Symbol) | Wiring Color |
Terminal Description | Condition |
Specified Condition |
---|---|---|---|---|
A19-1 (BATT) - A19-10 (E1) |
G - W-B | Auxiliary battery (for measuring auxiliary battery voltage and ECM memory) |
Always | 11 to 16 V |
A19-2 (IGSW) - A19-10 (E1) |
B - W-B | Power switch signal |
Power switch on (IG) |
11 to 14 V |
A19-3 (VPMP) - A19-10 (E1) |
L - W-B | Vent valve (built into canister pump module) |
Power switch on (IG) |
11 to 14 V |
A19-5 (MPMP) - A19-10 (E1) |
V - W-B | Leak detection pump (canister pump module) |
Leak detection pump off |
Below 3 V |
Leak detection pump on |
11 to 14 V | |||
A19-6 (FPC) - A19-10 (E1) |
R - W-B | Fuel pump control |
Engine stopped, power switch on (IG) |
Below 1.5 V |
A19-7 (CAN+) - A19-10 (E1) |
P - W-B | CAN communication line |
Engine stopped, power switch on (IG) |
Pulse generation (See waveform 1) |
A19-8 (CANH) - A19-10 (E1) |
B - W-B | CAN communication line |
Engine stopped, power switch on (IG) |
Pulse generation (See waveform 1) |
A19-9 (+B) - A19-10 (E1) |
L - W-B |
| Power switch on (IG) |
11 to 14 V |
A19-10 (E1) - Body ground |
W-B - - | Ground |
Always | Below 1 Ω |
A19-12 (CCV2) - A19-10 (E1) |
BE - W-B | Fuel vapor containment valve assembly signal |
Fuel vapor containment valve assembly on (open) |
Below 1.0 V |
Fuel vapor containment valve assembly off (closed) |
11 to 14 V | |||
A19-15 (MREL) - A19-10 (E1) |
W - W-B | EFI-MAIN NO. 1 relay operation signal |
Power switch on (IG) |
Below 1.5 V |
A19-16 (NEO) - A19-10 (E1) |
B - W-B | Crankshaft revolution signal |
Idling with warm engine |
Pulse generation (See waveform 2) |
A19-17 (CAN-) - A19-10 (E1) |
W - W-B | CAN communication line |
Engine stopped, power switch on (IG) |
Pulse generation (See waveform 3) |
A19-18 (CANL) - A19-10 (E1) |
W - W-B | CAN communication line |
Engine stopped, power switch on (IG) |
Pulse generation (See waveform 3) |
A19-24 (G2O) - A19-10 (E1) |
W - W-B | Camshaft revolution signal |
Idling with warm engine |
Pulse generation (See waveform 4) |
A19-31 (LIDO) - A19-10 (E1) |
GR - W-B | Fuel lid courtesy switch signal |
Fuel lid closed | Below 1.0 V |
Fuel lid open | 11 to 14 V | |||
A19-32 (RFC) - A19-10 (E1) |
LG - W-B | Cooling fan control signal |
Power switch on (IG), A/C switch on (max cool) |
Pulse generation (See waveform 5) |
A19-34 (IREL) - A19-10 (E1) |
P - W-B | D INJ relay operation signal |
Power switch on (IG) |
11 to 14 V |
A19-35 (+B2) - A19-10 (E1) |
L - W-B | Power source of ECM |
Power switch on (IG) |
11 to 14 V |
A19-36 (E2) - Body ground |
W-B - - | Ground |
Always | Below 1 Ω |
A19-38 (FUEL) - A19-10 (E1) |
G - W-B | Fuel lid opener switch signal |
Fuel lid opener switch pressed |
Below 1.0 V |
Fuel lid opener switch not pressed |
4.5 to 5.5 V | |||
A19-45 (EC) - Body ground |
W-B - - | Ground |
Always | Below 1 Ω |
A19-41 (LSTM) - A19-10 (E1) |
B - W-B | Fuel lid operation signal for combination meter assembly |
Multi-information display displaying "Close Fuel Lid" |
Pulse generation (See waveform 6) |
Multi-information display displaying "Ready to Refuel" |
Pulse generation (See waveform 7) | |||
Power switch on (IG) |
11 to 14 V | |||
A19-44 (FREL) - A19-10 (E1) |
Y - W-B | Fuel lid lock with motor assembly operation signal |
Fuel lid lock with motor assembly operating |
Below 1.0 V |
Fuel lid lock with motor assembly not operating |
11 to 14 V | |||
A19-48 (VCPP) - A19-49 (EPPM) |
B - LG | Power source for canister pressure sensor (specific voltage) |
Power switch on (IG) |
4.5 to 5.5 V |
A19-50 (PPMP) - A19-49 (EPPM) |
P - LG | Canister pressure sensor (built into canister pump module) |
Power switch on (IG) |
3.0 to 3.6 V |
A19-53 (+BD1) - A19-10 (E1) |
W - W-B | Power source of ECU (injector driver) |
Power switch on (IG) |
11 to 14 V |
A19-54 (E1D1) - Body ground |
W-B - - | Ground |
Always | Below 1 Ω |
A19-57 (VPTK) - A19-56 (EPTK) |
L - G | Power source of fuel tank pressure sensor (specific voltage) |
Engine stopped, power switch on (IG) |
4.75 to 5.25 V |
A19-55 (PTNK) - A19-56 (EPTK) |
R - G | Fuel tank pressure sensor signal |
Engine stopped, power switch on (IG) |
0.27 to 4.73 V |
C55-1 (M-) - A19-10 (E1) |
L - W-B | Throttle actuator operation signal (negative signal) |
Idling with warm engine |
Pulse generation (See waveform 8) |
C55-2 (M+) - A19-10 (E1) |
B - W-B | Throttle actuator operation signal (positive terminal) |
Idling with warm engine |
Pulse generation (See waveform 9) |
C55-3 (EGA+) - A19-10 (E1) |
R - W-B | EGR valve assembly operation signal |
Idling with warm engine |
Pulse generation (See waveform 10) |
C55-4 (EGA-) - A19-10 (E1) |
L - W-B | EGR valve assembly operation signal |
Idling with warm engine |
Pulse generation (See waveform 10) |
C55-5 (EGB-) - A19-10 (E1) |
V - W-B | EGR valve assembly operation signal |
Idling with warm engine |
Pulse generation (See waveform 10) |
C55-6 (EGB+) - A19-10 (E1) |
GR - W-B | EGR valve assembly operation signal |
Idling with warm engine |
Pulse generation (See waveform 10) |
C55-7 (HTHM) - A19-10 (E1) |
LA-G - W-B | Thermostat heater (water inlet with thermostat sub-assembly) operation signal |
Power switch on (IG) |
11 to 14 V |
C55-8 (HA1B) - A19-10 (E1) |
R - W-B | Air fuel ratio sensor (sensor 2) heater operation signal |
Power switch on (IG) |
11 to 14 V |
Idling with cold engine |
Pulse generation (See waveform 11) | |||
C55-9 (HA1A) - A19-10 (E1) |
L - W-B | Air fuel ratio sensor (sensor 1) heater operation signal |
Power switch on (IG) |
11 to 14 V |
Idling with cold engine |
Pulse generation (See waveform 12) | |||
C55-10 (#2D-) - A19-10 (E1) |
G - W-B | Direct fuel injector assembly signal (No. 2 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-11 (#2D+) - A19-10 (E1) |
L - W-B | Direct fuel injector assembly signal (No. 2 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-12 (#3D+) - A19-10 (E1) |
W - W-B | Direct fuel injector assembly signal (No. 3 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-13 (#3D-) - A19-10 (E1) |
R - W-B | Direct fuel injector assembly signal (No. 3 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-14 (#4D-) - A19-10 (E1) |
V - W-B | Direct fuel injector assembly signal (No. 4 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-15 (#4D+) - A19-10 (E1) |
P - W-B | Direct fuel injector assembly signal (No. 4 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-16 (#1D+) - A19-10 (E1) |
W - W-B | Direct fuel injector assembly signal (No. 1 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-17 (#1D-) - A19-10 (E1) |
BR - W-B | Direct fuel injector assembly signal (No. 1 cylinder) |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 13) |
C55-18 (FP1-) - A19-10 (E1) |
L - W-B | Fuel pump assembly (for high pressure side) signal |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 14) |
C55-19 (FP1+) - A19-10 (E1) |
G - W-B | Fuel pump assembly (for high pressure side) signal |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
Pulse generation (See waveform 14) |
C55-20 (VOP-) - A19-10 (E1) |
P - W-B | Oil pressure control valve operation signal |
Idling with warm engine |
Pulse generation (See waveform 15) |
C55-21 (VOP+) - A19-10 (E1) |
G - W-B | Oil pressure control valve operation signal |
Idling with warm engine |
Pulse generation (See waveform 15) |
C55-26 (OE1+) - C55-25 (OE1-) |
LA-B - LA-W | Cam timing oil control solenoid assembly operation signal |
Idling | Pulse generation (See waveform 16) |
C55-28 (EDT1) - A19-10 (E1) |
P - W-B | Cam timing control motor with EDU assembly signal |
Idling with warm engine |
Pulse generation (See waveform 17) |
C55-42 (WSV1) - A19-10 (E1) |
LA-W - W-B | Flow shutting valve operation signal |
Power switch on (IG) |
11 to 14 V |
C55-46 (IGT4) - A19-10 (E1) |
B - W-B | No. 4 ignition coil assembly signal (ignition signal) | Idling with warm engine |
Pulse generation (See waveform 18) |
C55-47 (IGT3) - A19-10 (E1) |
P - W-B | No. 3 ignition coil assembly signal (ignition signal) | Idling with warm engine |
Pulse generation (See waveform 18) |
C55-48 (IGT2) - A19-10 (E1) |
V - W-B | No. 2 ignition coil assembly signal (ignition signal) | Idling with warm engine |
Pulse generation (See waveform 18) |
C55-49 (IGT1) - A19-10 (E1) |
W - W-B | No. 1 ignition coil assembly signal (ignition signal) | Idling with warm engine |
Pulse generation (See waveform 18) |
C55-50 (WPO) - A19-10 (E1) |
LA-G - W-B | Water inlet housing with water pump sub-assembly signal |
Idling with warm engine |
Pulse generation (See waveform 19) |
C55-51 (WPI) - A19-10 (E1) |
LA-B - W-B | Water inlet housing with water pump sub-assembly signal |
Idling with warm engine |
Pulse generation (See waveform 20) |
C55-66 (PRG) - A19-10 (E1) |
P - W-B | Purge VSV operation signal |
Power switch on (IG) |
11 to 14 V |
Idling with warm engine, under purge control |
Pulse generation (See waveform 21) | |||
C55-70 (EMR1) - A19-10 (E1) |
LG - W-B | Cam timing control motor with EDU assembly signal |
Idling with warm engine |
Pulse generation (See waveform 22) |
C55-71 (EMF1) - A19-10 (E1) |
B - W-B | Cam timing control motor with EDU assembly signal |
Idling with warm engine |
Below 5.0 V |
C55-72 (EMD1) - A19-10 (E1) |
L - W-B | Cam timing control motor with EDU assembly signal |
Idling with warm engine |
Pulse generation (See waveform 23) |
C55-73 (#40) - A19-10 (E1) |
P - W-B | Port fuel injector assembly signal (No. 4 cylinder) |
Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
Pulse generation (See waveform 24) |
C55-74 (#30) - A19-10 (E1) |
W - W-B | Port fuel injector assembly signal (No. 3 cylinder) |
Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
Pulse generation (See waveform 24) |
C55-75 (#20) - A19-10 (E1) |
G - W-B | Port fuel injector assembly signal (No. 2 cylinder) |
Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
Pulse generation (See waveform 24) |
C55-76 (#10) - A19-10 (E1) |
B - W-B | Port fuel injector assembly signal (No. 1 cylinder) |
Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
Pulse generation (See waveform 24) |
C55-78 (VCVG) - A19-10 (E1) |
R - W-B | Power source of mass air flow meter sub-assembly (specific voltage) |
Power switch on (IG) |
4.8 to 5.2 V |
C55-84 (VCPF) - A19-10 (E1) |
LG - W-B | Power source of No. 2 fuel pressure sensor (for low pressure side) (specific voltage) |
Power switch on (IG) |
4.75 to 5.25 V |
C55-87 (VTA2) - C55-110 (ETA) |
V - G | Throttle position sensor signal (for sensor malfunction detection) |
Engine stopped, power switch on (IG), accelerator pedal fully released |
2.1 to 3.1 V |
C55-88 (VCV1) - A19-10 (E1) |
L - W-B | Power source of camshaft position sensor (for intake camshaft) (specific voltage) |
Power switch on (IG) |
4.5 to 5.5 V |
C55-90 (VV1+) - C55-89 (VV1-) |
B - LG | Camshaft position sensor (for intake camshaft) signal |
Idling with warm engine |
Pulse generation (See waveform 25) |
C55-91 (EV1+) - C55-114 (EV1-) |
V - G | Camshaft position sensor (for exhaust camshaft) signal |
Idling with warm engine |
Pulse generation (See waveform 25) |
C55-93 (NE+) - C55-115 (NE-) |
L - P | Crankshaft position sensor signal |
Idling with warm engine |
Pulse generation (See waveform 26) |
C55-94 (A1A-) - A19-10 (E1) |
G - W-B | Air fuel ratio sensor (sensor 1) signal |
Power switch on (IG) |
1.24 to 4.22 V |
C55-95 (A1A+) - A19-10 (E1) |
R - W-B | Air fuel ratio sensor (sensor 1) signal |
Power switch on (IG) |
1.46 to 4.22 V |
C55-97 (PR) - C55-96 (EPR) |
L - V | Fuel pressure sensor (for high pressure side) signal |
Idling with warm engine |
0.5 to 4.5 V |
C55-98 (VCPR) - C55-96 (EPR) |
LG - V | Power source of fuel pressure sensor (for high pressure side) (specific voltage) |
Power switch on (IG) |
4.75 to 5.25 V |
C55-99 (VCPE) - C55-100 (EPEO) |
R - G | Power source of engine oil pressure sensor (specific voltage) |
Power switch on (IG) |
4.5 to 5.5 V |
C55-101 (VG) - C55-79 (E2G) |
W - G | Mass air flow meter sub-assembly signal |
Power switch on (IG) |
Pulse generation (See waveform 27) |
C55-102 (THA) - C55-79 (E2G) |
V - G | Intake air temperature sensor (mass air flow meter sub-assembly) signal |
Idling, intake air temperature 0 to 80°C (32 to 176°F) |
0.5 to 3.4 V |
C55-107 (PFL) - C55-61 (EPFL) |
V - L | No. 2 fuel pressure sensor (for low pressure side) signal |
Idling with warm engine |
0.75 to 4.5 V |
C55-108 (VTA1) - C55-110 (ETA) |
P - G | Throttle position sensor signal (for engine control) |
Engine stopped, power switch on (IG), accelerator pedal fully released |
0.6 to 1.1 V |
C55-109 (VCTA) - C55-110 (ETA) |
R - G | Power source of throttle position sensor (specific voltage) |
Engine stopped, power switch on (IG) |
4.5 to 5.5 V |
C55-111 (KNK1) - C55-112 (EKNK) |
B - W | Knock control sensor signal |
Engine speed maintained at 2500 rpm after warming up engine |
Pulse generation (See waveform 28) |
C55-113 (VCE1) - A19-10 (E1) |
L - W-B | Power source of camshaft position sensor (for exhaust camshaft) (specific voltage) |
Power switch on (IG) |
4.5 to 5.5 V |
C55-116 (VCNE) - A19-10 (E1) |
V - W-B | Power source of crankshaft position sensor (specific voltage) |
Power switch on (IG) |
4.5 to 5.5 V |
C55-117 (A1B-) - A19-10 (E1) |
W - W-B | Air fuel ratio sensor (sensor 2) signal |
Power switch on (IG) |
1.17 to 4.49 V |
C55-118 (A1B+) - A19-10 (E1) |
B - W-B | Air fuel ratio sensor (sensor 2) signal |
Power switch on (IG) |
1.53 to 5.96 V |
C55-120 (PIM) - C55-119 (EPIM) |
P - G | Manifold absolute pressure sensor signal |
Power switch on (IG) |
3.0 to 4.5 V |
C55-121 (VCPM) - C55-119 (EPIM) |
B - G | Power source of manifold absolute pressure sensor (specific voltage) |
Power switch on (IG) |
4.75 to 5.25 V |
C55-122 (PEO) - C55-100 (EPEO) |
W - G | Oil pressure sensor signal |
Idling with warm engine |
0.5 to 4.5 V |
C55-123 (THEO) - C55-104 (ETHE) |
V - W | Engine oil temperature sensor signal |
Power switch on (IG) |
0.14 to 4.93 V |
C55-125 (THW) - C55-124 (ETHW) |
L - P | Engine coolant temperature sensor signal |
Idling, engine coolant temperature 75 to 100°C (167 to 212°F) |
0.2 to 1.0 V |
C55-129 (THTW) - C55-130 (ETHT) |
P - W | No. 2 engine coolant temperature sensor signal |
Idling, engine coolant temperature 75 to 100°C (167 to 212°F) |
0.2 to 1.0 V |
WAVEFORM 1
ECM Terminal Name | Between CANH and E1 Between CAN+ and E1 |
Tester Range |
1 V/DIV., 10 μs./DIV. |
Condition |
Engine stopped, power switch on (IG) |
HINT:
The waveform varies depending on the CAN communication signal.
WAVEFORM 2
ECM Terminal Name | Between NEO and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 3
ECM Terminal Name | Between CANL and E1 Between CAN- and E1 |
Tester Range |
1 V/DIV., 10 μs./DIV. |
Condition |
Engine stopped, power switch on (IG) |
HINT:
The waveform varies depending on the CAN communication signal.
WAVEFORM 4
ECM Terminal Name | Between G2O and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 5
ECM Terminal Name | Between RFC and E1 |
Tester Range | 1 V/DIV., 20 ms./DIV. |
Condition | Power switch on (IG), A/C switch on (max cool) |
HINT:
The duty ratio varies depending on the engine coolant temperature.
WAVEFORM 6
ECM Terminal Name | Between LSTM and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Multi-information display displaying "Close Fuel Lid" |
WAVEFORM 7
ECM Terminal Name | Between LSTM and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Multi-information display displaying "Ready to Refuel" |
WAVEFORM 8
ECM Terminal Name | Between M- and E1 |
Tester Range | 5 V/DIV., 1 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The duty ratio varies depending on the throttle actuator operation.
WAVEFORM 9
ECM Terminal Name | Between M+ and E1 |
Tester Range | 5 V/DIV., 1 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The duty ratio varies depending on the throttle actuator operation.
WAVEFORM 10
ECM Terminal Name | CH1: Between EGA+ and E1 CH2: Between EGA- and E1 |
CH1: Between EGB+ and E1 CH2: Between EGB- and E1 | |
Tester Range | 5 V/DIV., 5 μs./DIV. |
Condition | Idling with warm engine |
HINT:
When the EGR valve assembly is operating, a waveform is produced at each terminal.
WAVEFORM 11
ECM Terminal Name | Between HA1B and E1 |
Tester Range | 5 V/DIV., 10 ms./DIV. |
Condition | Idling with cold engine |
WAVEFORM 12
ECM Terminal Name | Between HA1A and E1 |
Tester Range | 5 V/DIV., 10 ms./DIV. |
Condition | Idling with cold engine |
WAVEFORM 13
ECM Terminal Name | CH1: Between #1D+ and E1 CH2: Between #1D- and E1 |
CH1: Between #2D+ and E1 CH2: Between #2D- and E1 | |
CH1: Between #3D+ and E1 CH2: Between #3D- and E1 | |
CH1: Between #4D+ and E1 CH2: Between #4D- and E1 | |
Tester Range | 50 V/DIV., 200 μs./DIV. |
Condition | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
WAVEFORM 14
ECM Terminal Name | CH1: Between FP1+ and E1 CH2: Between FP1- and E1 |
Tester Range |
20 V/DIV., 500 μs./DIV. |
Condition |
Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
WAVEFORM 15
ECM Terminal Name | CH1: Between VOP+ and E1 CH2: Between VOP- and E1 |
Tester Range |
5 V/DIV., 20 ms./DIV. |
Condition |
Idling with warm engine |
WAVEFORM 16
ECM Terminal Name | Between OE1+ and OE1- |
Tester Range | 5 V/DIV., 1 ms./DIV. |
Condition | Idling |
WAVEFORM 17
Cam Timing Control Motor with EDU Assembly Signal (EDT Signal)
ECM Terminal Name | Between EDT1 and E1 |
Tester Range | 1 V/DIV., 5 ms./DIV. |
Condition | Idling with warm engine |
WAVEFORM 18
ECM Terminal Name | Between IGT (1 to 4) and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 19
ECM Terminal Name | Between WPO and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The duty ratio varies depending on the water inlet housing with water pump sub-assembly speed.
WAVEFORM 20
ECM Terminal Name | Between WPI and E1 |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the water inlet housing with water pump sub-assembly speed increases.
WAVEFORM 21
ECM Terminal Name | Between PRG and E1 |
Tester Range | 10 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine, under purge control |
HINT:
If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
WAVEFORM 22
Cam Timing Control Motor with EDU Assembly Signal (EMR Signal)
ECM Terminal Name | Between EMR1 and E1 |
Tester Range | 2 V/DIV., 5 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 23
Cam Timing Control Motor with EDU Assembly Signal (EMD Signal)
ECM Terminal Name | Between EMD1 and E1 |
Tester Range | 2 V/DIV., 100 ms./DIV. |
Condition | Idling with warm engine |
WAVEFORM 24
ECM Terminal Name | Between #10 (to #40) and E1 |
Tester Range | 20 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
HINT:
WAVEFORM 25
ECM Terminal Name | CH1: Between VV1+ and VV1- CH2: Between EV1+ and EV1- |
Tester Range |
5 V/DIV., 20 ms./DIV. |
Condition |
Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 26
ECM Terminal Name | Between NE+ and NE- |
Tester Range | 2 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
HINT:
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 27
ECM Terminal Name | Between VG and E2G |
Tester Range | 1 V/DIV., 100 μs./DIV. |
Condition | Power switch on (IG) |
WAVEFORM 28
ECM Terminal Name | Between KNK1 and EKNK |
Tester Range | 1 V/DIV., 1 ms./DIV. |
Condition | Engine speed maintained at 2500 rpm after warming up engine |
HINT:
MONITOR DESCRIPTION
The ECM and inverter with converter assembly (MG ECU) send and receive signals via CAN communication.
If a communication error occurs between the ECM and inverter with converter assembly, the ECM illuminates the MIL and stores this DTC.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
---|---|---|---|---|---|---|
U011087 |
Lost Communication with Drive Motor Control Module "A" Missing Message |
All of the following conditions are met for 5.6 seconds or more (1 trip detection logic):
|
| Comes on |
DTC stored | SAE Code: U0110 |
MONITOR STRATEGY
Related DTCs | U0110: Lost communication with drive motor control module |
Required Sensors/Components (Main) | ECM |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | 5.6 seconds |
MIL Operation |
Immediate |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored |
None |
Both of the following conditions are met |
- |
Auxiliary battery Voltage |
10 V or higher |
Power switch |
On (IG) |
TYPICAL MALFUNCTION THRESHOLDS
Communication signal | Lost communication with drive motor "A" control module |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
Techstream Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
NOTICE:
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
Click here
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1. |
GO TO CAN COMMUNICATION SYSTEM |
(a) Refer to the CAN Communication System.
Click here
NEXT | ![]() | END |
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Mirror (ext): Power Mirror Control System(for Hv Model With Memory)
Customize Parameters CUSTOMIZE PARAMETERS CUSTOMIZE POWER MIRROR CONTROL SYSTEM (w/ Memory) NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. HINT: The following items can be customized. (a) ...