Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnosis Procedure
- CHECK IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)
- Disconnect push-button ignition switch connector and IPDM E/R connector.
- Check voltage between push-button ignition switch harness connector and ground.
(+) (-) Voltage (V) (Approx.) Push-button ignition switch Connector Terminal M101 8 Ground 12 Is the inspection result normal?
YES: GO TO 3.
NO: GO TO 2.
- CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
- Disconnect BCM connector.
- Check continuity between BCM harness connector and push-button ignition switch harness connector.
BCM Push-button ignition switch Continuity Connector Terminal Connector Terminal M70 76 M101 8 Existed - Check continuity between push-button ignition switch harness connector and ground.
Push-button ignition switch Ground Continuity Connector Terminal M101 8 Not existed Is the inspection result normal?
YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace harness.
- CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
Check voltage between IPDM E/R harness connector and ground.
(+) (-) Voltage (V) (Approx.) IPDM E/R Connector Terminal E17 66 Ground 12 Is the inspection result normal?
YES: Replace IPDM E/R.
NO: GO TO 4.
- CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
- Disconnect BCM connector.
- Check continuity between IPDM E/R harness connector and push-button ignition switch harness connector.
IPDM E/R Push-button ignition switch Continuity Connector Terminal Connector Terminal E17 66 M101 8 Existed - Check continuity between push-button ignition switch harness connector and ground.
Push-button ignition switch Ground Continuity Connector Terminal M101 8 Not existed Is the inspection result normal?
YES: GO TO 5.
NO: Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
: INSPECTION END
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.