B2510

Diagnostic Chart:

Wiring Diagram:

Circuit Description:
The IPC monitors the Steering Wheel Controls by discrete input to connector C2 terminal "B11." The IPC interprets this input and issues the appropriate Class 2 message.

DTC Will Set When:
The IPC determines that the "FAN UP," "FAN DOWN," "TEMP UP," or "TEMP DOWN" key has been active for more than 12.5 seconds.

Troubleshooting Hints:
1. Check for binding, sticking or broken steering wheel touch controls.
2. Each steering wheel control switch has a unique resistance. These resistance Values may be measured by disconnecting C202 and placing an ohmmeter across connector C202 Terminals "A1" and "A4", then Closing the switch being tested.