B2810

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The steering wheel controls are simple momentary contact switches that connect a series of resistors so that each switch selection corresponds to a fixed resistance value. The Dash Integration Module (DIM) determines which switch has been pressed by the voltage drop across the corresponding resistance value.

CONDITIONS FOR RUNNING THE DTC
This lest is run every 300 milliseconds.

CONDITIONS FOR SETTING THE DTC
The switch must be stuck (pressed) for at least 30 seconds.

ACTION TAKEN WHEN THE DTC SETS
The DIM will ignore the switch command.

CONDITIONS FOR CLEARING THE MIL/DTC
The stuck switch condition must be corrected.

DIAGNOSTIC AIDS
^ The following may cause an intermittent.
- A bent terminal A backed out terminal
- A damaged terminal
- Poor terminal tension
- A chated wire
- A broken wire inside the insulation
^ When diagnosing for an intermittent short or an open massage the wire harness while watching the test equipment for changes

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
2. This step verities that the steering wheel convenience switch is stuck. The convenience switches operate in the 123-247 count range. The value given is the normal condition that exists when no switch is activated.

For a description of the RPO Code(s) shown in this image/article refer to the RPO Code List found at Vehicle/Application ID RPO Codes