Power Switch Illumination Circuit: Procedure
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Smart Key / Active Test.
- According to the display on the Techstream, perform the Active Test.SMART KEY
Techstream Display Test Part Control Range Diagnostic Note Power SW Light Power switch light OFF or ON When performing this Active Test, make sure the following condition is met:
The power switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the power switch is on (ACC or IG), or the EV control system is running.OK
Power switch illumination comes on.
NG → See step 2
OK → See step 5
- INSPECT POWER SWITCH
- Inspect the power switch. Refer to INSPECTION .
NG → See step 4
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (POWER SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)
- Disconnect the C15 power switch connector.
- Disconnect the C19 certification ECU (smart key ECU assembly) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C15-11 (SWIL) - C19-11 (SWIL) Always Below 1 Ω C15-11 (SWIL) - Body ground Always 10 kΩ or higher C15-5 (GND) - Body ground Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 6
- REPLACE POWER SWITCH. Refer to REMOVAL
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL