B148E
B148E-STEERING WHEEL CONTROL [+] SWITCH CIRCUIT
For a complete wiring diagram, refer to the wiring information Electrical Diagrams.
Theory of Operation
The Steering Wheel Control Plus (+) Switch is part of the Right Steering Switch. The switching status is transferred to the Steering Control Module (SCM) by way of the LIN bus, a serial sub-bus. The SCM converts the data to CAN(B) and sends the message to the corresponding module on the bus.
- When Monitored:
Continuously with the ignition on.
- Set Condition:
The Steering Control Module senses that the Steering Wheel Control Plus (+) Switch is in the Set position for greater than 50 seconds.
CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Press the (+) switch three times.
4. Wait one minute.
5. With the scan tool, read DTCs.
Does the scan tool display this DTC as Active?
Yes
- Replace the RIGHT Steering Switch.
- Perform the BODY VERIFICATION TEST Body Verification Test.
No
- Test complete.