B1425

B1425-2A-REMOTE RADIO SWITCH INPUT - STUCK

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Remote Radio Switches are hardwired to the Right Steering Wheel Control Switch (Speed Control Switch). The Right Steering Wheel Control Switch (Speed Control Switch) communicates to the Steering Column Control Module (SCCM) via the LIN Bus. The SCCM is located near the top of the steering column below the steering wheel. The SCCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multifunction Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCCM is replaced as an entire assembly.

- When Monitored:
Continuously with the ignition on.

- Set Condition:
The Steering Column Control Module senses that the Remote Radio Switches are in the Set position for greater than 600 seconds.





Diagnostic Test

1. CHECK FOR AN ACTIVE DTC

NOTE: Before proceeding with the diagnostic procedure, verify that the connections are proper made, properly seated and verify proper pin terminal tension. A loose connection at any of SCCM connectors may cause the DTC to set.

1. Turn the ignition on.
2. Press each Remote Radio Switch twice.
3. With the scan tool, read DTCs

Does the scan tool display this DTC as active?

Yes
- Go To 2

No
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. LEFT OR RIGHT REMOTE RADIO SWITCH

NOTE: Check for a stuck Remote Radio Switch. Repair as necessary.

1. With the scan tool, view the switch status. Status can be viewed in the SCCM data display.

NOTE: With the switches not pressed, the value for the remote switches should read "Not Set".

2.
Left Remote Radio Switch
- SWS Seek Up
- SWS Preset
- SWS Seek Down

3.
Right Remote Radio Switch
- SWS Volume Up
- SWS Audio Mode
- SWS Volume Down

Does the scan tool display the correct status of the switches in the data display?

Yes
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

WARNING:
Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

WARNING:
Do not place an intact non-deployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.

NOTE: Visually and physically inspect the wiring harness between the Remote Radio Switch harness connectors and the Right Steering Wheel Switch (Speed Control Switch) harness connector. Repair any damaged wires, connectors, and open/spread terminals. If harness is OK, proceed with test.

- Replace the Remote Radio Switch that does not display the correct value in the data display. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.