B3794

DTC B3794

Circuit Description

Caution: Refer to Restraint System Service Precautions.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to Air Bag(s) Arming and Disarming. Service and Repair

The cruise control switch is an input to the body control module (BCM). The BCM monitors the cruise control set/coast and resume/accelerate switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control set/coast and resume/accelerate switch signal circuit when a switch is applied.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B3794 Cruise Control Function Request Circuit

Conditions for Running the DTC

* The cruise switch is ON.
* The ignition is ON.

Conditions for Setting the DTC

* The BCM detects an invalid voltage signal on the cruise control set/coast and resume/accelerate switch signal circuit.
* The above condition is present for greater than 1 second.

Action Taken When the DTC Sets

* The BCM stores the DTC information into memory when the diagnostic runs and fails.
* The malfunction indicator lamp (MIL) will not illuminate.
* The Cruise Control System is disabled.

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 receives a clear code command from the scan tool.

Diagnostic Aids

* Rotate the steering wheel to both steering stops and activate each cruise control switch separately. With a scan tool, observe the Cruise Control Switch parameter in the BCM Cruise Control data list. This will help eliminate the possibility of a internally open or shorted inflatable restraint steering wheel module coil.
* For an intermittent, refer to Testing for Intermittent Conditions and Poor Connections in Diagnostic Aids. Component Tests and General Diagnostics

Test Description

Step 1 - Step 9:

Step 10 - Step 15:

The number below refers to the step number on the diagnostic table.

2. This step determines if a condition is present.