B3794

DTC B3794

CIRCUIT DESCRIPTION




The body control module (BCM) monitors the cruise control set/coast and resume/accel switch signal circuit in order to detect when the driver has requested a cruise control switch function. The BCM determines which cruise control switch function is being requested based on a predetermined voltage signal from the cruise control switch.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B3794 Cruise Control Function Request Circuit

This vehicle has DTCs which include DTC Symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information. DTC Symptom Description

CONDITIONS FOR RUNNING THE DTC
- The cruise control On/Off switch is ON.
- The engine is ON.

CONDITIONS FOR SETTING THE DTC
- The BCM detects an invalid voltage signal on the cruise control set/coast and resume/accel switch signal circuit.
- The above condition is present for 1 second.

ACTION TAKEN WHEN THE DTC SETS
- The malfunction indicator lamp (MIL) will not illuminate.
- The BCM stores the DTC information into memory when the diagnostic runs and fails.
- The Adaptive Cruise Control (ACC) System is disabled.
- Cruise Not Ready indicator displays in the driver information center (DIC).

CONDITIONS FOR CLEARING THE DTC
- The DTC becomes history when the fault is no longer present.
- A History DTC clears after 100 malfunction free ignition cycles.
- The BCM module receives a clear code command from the scan tool.

DIAGNOSTIC AIDS
For an intermittent condition, refer to Diagnostic Aids for Circuit Testing and Wiring Repair procedures.

TEST

Steps 1 - 9:

Steps 10 - 15: