2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 97
Check stop lamp switch. See: Cruise Control/Testing and Inspection/Component Tests and General Diagnostics/ICC Brake Switch and Stop
Lamp Switch.
OK or NG
OK - GO TO 6.
NG - 1. Replace stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
6.CHECK STOP LAMP ILLUMINATION
1. Turn ignition switch OFF.
2. Disconnect ICC brake hold relay.
3. Connect stop lamp switch connector.
4. Check if stop lamp is turned ON when depressing brake pedal.
OK or NG
OK - GO TO 7.
NG - 1. Repair or replace stop lamp circuit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
7.CHECK HARNESS BETWEEN STOP LAMP SWITCH AND ECM
1. Disconnect stop lamp switch connector and ECM connector.
2. Check continuity between stop lamp switch harness connector
(A) and ECM harness connector (B).
3. Check continuity between stop lamp switch harness connector
(A) and ground.
OK or NG
OK - GO TO 8.
NG - 1. Repair or replace harness between stop lamp switch and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
8.CHECK ICC BRAKE HOLD RELAY CIRCUIT
