ECU Power Source Circuit [11/2018 - 10/2022]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BATTERY AND BODY GROUND)
- Disconnect the parking assist ECU connector.
*a Front view of wire harness connector
(to Parking Assist ECU) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition N25-4 (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 N25-1 (+B) - N25-4 (GND1) Power switch off 11 to 14 V N25-2 (ACC) - N25-4 (GND1) Power switch on (ACC) 11 to 14 V Power switch off Below 1 V N25-3 (IG) - N25-4 (GND1) Power switch on (IG) 11 to 14 V Power 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 [11/2018 - 10/2022]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Disconnect the parking assist ECU connector.