DESCRIPTION Refer to DTC P001001. Click here
HINT: If initialization is performed using the Techstream with any of the connectors of the wire harnesses between the power source or ECM and the cam timing control motor with EDU assembly disconnected, DTC P001600 may be stored. If DTC P001600 is output, check the connection condition of each connector. MONITOR DESCRIPTION This DTC is stored when a deviation in the valve timing is detected. If a deviation in the valve timing is detected when the engine is idling (during valve timing learning) after performing learning value reset using the Techstream or when the vehicle is being driven, the ECM determines that a malfunction has occurred. If a deviation in the valve timing is detected in consecutive driving cycles, the ECM will illuminate the MIL and store a DTC. MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
CONFIRMATION DRIVING PATTERN HINT:
CAUTION / NOTICE / HINT NOTICE:
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
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine / Trouble Codes. (e) Read the DTCs. Powertrain > Engine > Trouble Codes
HINT: If any DTCs other than P001600 are output, troubleshoot those DTCs first.
(a) Remove the cam timing control motor with EDU assembly. Click here (b) Check if the eccentric shaft of the camshaft timing gear assembly rotates smoothly. NOTICE: If the camshaft is at a position where a valve is about to open, the eccentric shaft may become difficult to rotate. OK: Rotates smoothly. HINT: Perform "Inspection After Repair" after replacing the camshaft timing gear assembly, or removing the cam timing control motor with EDU assembly. Click here
(a) Remove the cylinder head cover sub-assembly. Click here (b) Turn the crankshaft pulley and align its groove with the TDC timing mark of the timing chain cover.
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Clear the DTCs. Powertrain > Engine > Clear DTCs(e) Turn the power switch off and wait for at least 30 seconds.
(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. (b) Enter the following menus: Powertrain / Engine / Trouble Codes. (c) Read the DTCs. Powertrain > Engine > Trouble Codes
(a) Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain. HINT: Perform "Inspection After Repair" after repairing or replacing the engine mechanical system. Click here
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Clear the DTCs. Powertrain > Engine > Clear DTCs(e) Turn the power switch off and wait for at least 30 seconds.
(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. (b) Enter the following menus: Powertrain / Engine / Trouble Codes. (c) Read the DTCs. Powertrain > Engine > Trouble Codes
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Toyota Avalon Service & Repair Manual > Airbag System(for Gasoline Model): Airbag ECU Malfunction1 (B1160-B1167)
DESCRIPTION The airbag ECU assembly consists of the acceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc. If the airbag ECU assembly receives signals from the acceleration sensor and pressure sensor, it determines whether the airbags and pretensioners should be ...