For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• | Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• | Diagnostic Procedure Instructions provides an overview of each diagnostic category.

### DTC Descriptor

DTC B0835 00 : Cruise Control System Active Indicator Circuit

### Diagnostic Fault Information

Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | ---
Cruise Control Indicator Low Reference | -- | -- | B0835 00 | --

### Circuit/System Description

The body control module (BCM) monitors the cruise control indicator switch. When the cruise on/off switch is pressed ON, the cruise control switch is closed and the signal circuit is low. When the cruise on/off switch is pressed OFF, the cruise control switch is open and the signal circuit is high.

### Conditions for Running the DTC

The ignition is ON.

### Conditions for Setting the DTC

• | The BCM detects excessive current in the cruise control/heated wheel indicator signal circuit.

• | The above condition is present for greater than 5 seconds.

### Action Taken When the DTC Sets

• | The BCM stores DTC B0835 in memory.

• | The cruise control system becomes inoperative.

### Conditions for Clearing the DTC

• | The DTC becomes history when the conditions for setting the DTC are no longer present.

• | The history DTC clears after 50 malfunction-free warm-up cycles.

• | The BCM receives a clear code command from the scan tool.

### Diagnostic Aids

Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.

### Reference Information

#### Schematic Reference

• | Cruise Control Schematics

• | Body Control System Schematics

#### Connector End View Reference

• | Secondary/Configurable Control Connector End Views

• | Data Communication Connector End Views

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

Scan Tool Data List

### Circuit/System Verification

Ignition ON, observe the scan tool Cruise Control Switch parameter while pressing the cruise control switch ON and OFF. The reading should change between ON and OFF.

### Circuit/System Testing

1. Ignition OFF, disconnect the cruise control switch assembly.
2. Ignition ON, verify that a test lamp illuminates between the cruise control/heated wheel indicator signal circuit and ground.

⇒ | If the test lamp does not illuminate, replace the cruise control switch assembly.

3. Repair the short to voltage in the cruise control/heated wheel indicator signal circuit.

⇒ | If the circuit tests normal, replace the BCM.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Steering Wheel Control Switch Assembly Replacement

• | Control Module References for BCM replacement, setup, and programming