B1190

DTC B1190

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

1) Confirm that ignition mode of keyless push start system is in "OFF".
2) Push engine switch to change ignition mode to "ON".
3) Repeat Step 1) and 2) several times.

DTC Troubleshooting

1. Push switch signal circuit and push switch ground circuit check

Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect engine switch and "G04" connectors.
Check for proper terminal connection to engine switch and "G04" connectors.
If connections are OK, check the following points.
- Resistance of "A1", "A2" and "B1" circuits: less than 3 ohms
- Resistance between "A1", "A2" circuits and ground: infinity
- Resistance between "A1", "A2" circuit terminals and each terminal at engine switch connector: infinity
- Resistance between "B1" circuit terminal and each terminal at engine switch connector: infinity

Are they in good condition?
YES -
Go to Step 2.
NO -
Repair or replace defective wire harness.

2. Push switch check

Check push switch. Engine Switch Inspection

Is it in good condition?
YES -
Replace keyless start control module and recheck DTC. Service and Repair
NO -
Replace engine switch. Engine Switch Removal and Installation