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 B0550 32: Odometer Circuit General Memory Malfunction

### Circuit/System Description

The instrument cluster is equipped with odometers that indicate the distance travelled by the vehicle. One type of odometer is the season odometer where the traveled distance can not be reset by the driver. This information is also stored in the body control module (BCM). In addition to storing the season odometer value for the vehicle, the instrument cluster and the BCM store the VIN. Software checks are performed to ensure these modules, and their stored season odometer information, can not be moved or transferred between different vehicles.

### Conditions for Running the DTC

The ignition is ON.

### Conditions for Setting the DTC

#### B0550 32

The BCM has detected an internal memory malfunction.

### Action Taken When the DTC Sets

DTC B0550 32 is stored in the BCM memory.

### Conditions for Clearing the DTC

The BCM no longer detects a malfunction.

### Reference Information

#### Schematic Reference

Instrument Cluster Schematics

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Driver Information Center (DIC) Description and Operation

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

Control Module References for scan tool information

### Circuit/System Verification

1. Verify that DTC B0550 32 is not set.

⇒ | If the DTC is set, program the K9 Body Control Module (BCM).

2. Verify that DTC B0550 32 does not reset, If the DTC resets, replace the K9 Body Control Module (BCM).

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for BCM replacement, setup, and programming.