DESCRIPTION While the engine is being cranked, current flows from terminal STAR of the certification ECU (smart key ECU assembly) to the park/neutral position switch assembly and to terminal STA of the ECM (STA signal). WIRING DIAGRAM Refer to DTC P061512. Click here CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
(a) Check if the engine can be cranked.
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine / Data List / Starter SW. Powertrain > Engine > Data List
(e) Check the value displayed on the Techstream when the engine switch is turned on (IG) and the engine is cranked. OK:
(a) Inspect the ST relay. Click here
(a) Inspect the starter assembly. Click here
(a) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Disconnect the starter assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the cable from the positive (+) battery terminal. (c) Disconnect the starter assembly connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly. (b) Disconnect the certification ECU (smart key ECU assembly) connector. (c) Disconnect the park/neutral position switch assembly connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Inspect the park/neutral position switch assembly. Click here
(a) Disconnect the park/neutral position switch assembly connector. (b) Disconnect the ECM connector. (c) Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly. (d) Disconnect the certification ECU (smart key ECU assembly) connector. (e) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the park/neutral position switch assembly connector. (b) Disconnect the certification ECU (smart key ECU assembly) connector. (c) Disconnect the ECM connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine / Data List / Starter SW. Powertrain > Engine > Data List
(e) Check the value displayed on the Techstream when the engine switch is turned on (IG) and the engine is cranked. OK:
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Toyota Avalon Service & Repair Manual > Throttle Body: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (a) Check the idle speed. (1) Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range with the A/C switch off. Standard Idle Speed: ...