Test F: DTC B2268 Or DTC B2269 - Steering Wheel Control Switch Circuit Open Or Short To Ground

PINPOINT TEST F: DTC B2268 OR DTC B2269 - STEERING WHEEL CONTROL SWITCH CIRCUIT OPEN OR SHORT TO GROUND

Normal Operation
Under normal operation, the steering wheel control switches receive a ground from the HVAC module - dual automatic temperature control (DATC) through circuit RH111 (GY/BU). The HVAC module - DATC senses the resistance (depending on what button is pressed) from the steering wheel control switches through circuit CH447 (YE/GY).

- DTC B2268 Steering Wheel Control Switch Open Circuit - The module senses no voltage drop on the reference voltage circuit, indicating an open circuit.
- DTC B2269 Steering Wheel Control Switch Circuit Short to Ground - The module senses excessive voltage drop on the reference voltage circuit, indicating a short directly to ground.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Steering wheel control switch
- HVAC module - DATC

F1:

F2-F3:

F3-F4:

F4-F5:

F5-F6:

F6-F8:

F8-F9:

F9-F10: