DTC B1190
Precautions: Precautions for Diagnosing Trouble · Precautions for Replacing Remote Controller · Precautions for Remote Controller Disposal · Precautions for Replacing Keyless Start Control Module · Precautions for Control Systems · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
B1190: Engine Switch Malfunction Push switch 1 signal voltage and/or push switch 2 signal voltage is not as specified for longer than specified time. |
•Engine switch circuit / connector
•Engine switch •Keyless start control module |
Circuit Diagram
| [A]: | Keyless start control module connector (View: [a]) | B1: | Push switch ground circuit | 3. | Push switch 2 |
| A1: | Push switch 1 signal circuit | 1. | Engine switch | 4. | Keyless start control module |
| A2: | Push switch 2 signal circuit | 2. | Push switch 1 |
DTC Confirmation Procedure
1)Check that ignition is “OFF”.
2)Set ignition “ON”.
3)Repeat Step 1) – 2) several times.
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Push switch signal circuit and push switch ground circuit check
1)Check that ignition is “OFF”.
2)Disconnect engine switch and “G16” connectors.
3)Check for proper terminal connection to engine switch and “G16” connectors.
4)If connections are OK, check the following points.
•Resistance of “A1”, “A2” and “B1” circuits: less than 1 Ω
•Resistance between each of “A1” and “A2” circuits and ground: infinity •Resistance between each of “A1” and “A2” circuit terminals and each terminal at engine switch connector: infinity •Resistance between “B1” circuit terminal and each terminal at engine switch connector: infinity Is check result OK?
|
Go to Step 2.
|
Repair or replace defective wire harness.
|
| 2 |
Engine switch check
1)Check engine switch.
Is check result OK?
|
Replace keyless start control module and recheck DTC.
|
Replace engine switch.
|