Power Switch Indicator Circuit

2AZ-FXE STARTING: SMART KEY SYSTEM: Power Switch Indicator Circuit

Power Switch Indicator Circuit

DESCRIPTION

HV control system on (READY) conditions or system malfunctions can be checked by the status of the power switch indicator light.

Power switch indicator light condition:





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT POWER SWITCH
(a) Remove the power switch.





(b) Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch.

NOTICE:
- If the positive (+) lead and the negative (-) lead are incorrectly connected, the power switch indicator will not illuminate.
- If the voltage is too low, the indicator will not illuminate.

OK:





NG -- REPLACE POWER SWITCH
OK -- Continue to next step.
2. CHECK WIRE HARNESS (POWER SWITCH - MAIN BODY ECU AND BODY GROUND)
(a) Disconnect the E52 switch connector.





(b) Disconnect the E7 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU