ECU Power Source Circuit [09/2022 - ]: Procedure
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- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - AUXILIARY BATTERY AND BODY GROUND)
- Disconnect the parking assist ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition N126-4 (GND1) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition N126-1 (+B) - N126-4 (GND1) Ignition switch off 11 to 14 V N126-2 (IG) - N126-4 (GND1) Ignition switch ON 11 to 14 V Ignition switch off Below 1 V Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2022 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR