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 U2202: No Communication With Rear Control Panel

### Circuit/System Description

With the ignition in either the ACC position or the ON position the rear seat entertainment (RSE) interface module continuously sends a communication signal to the rear seat entertainment (RSE) control panel. Upon receiving the signal, the RSE control panel sends a reply signal, confirming that it can communicate. DTC U2202 will set to indicate the RSE control panel has not received a communication signal or replied when the RSE interface module has requested operation.

### Conditions for Running the DTC

DTC U2202 runs continuously once a valid RSE control panel response occurs.

### Conditions for Setting the DTC

The RSE interface module does not receive a response from the RSE control panel after 3 consecutive communication attempts.

### Action Taken When the DTC Sets

The rear seat entertainment system fails to operate.

### Conditions for Clearing the DTC

• | The current DTC will clear when the RSE interface module receives a communication reply from the RSE control panel.

• | The history DTC will clear after 50 fault-free ignition cycles have occurred.

### Reference Information

#### Schematic Reference

Video System Schematics

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Video Entertainment System 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 Testing

1. Verify that DTC U2202 is set.
2. Ignition OFF, disconnect the audio/video interface module and RSE control panel harness connectors.
3. Test the RSE interface module and RSE control panel; communication, power and ground circuits for short to ground or an open/high resistance.

⇒ | If the circuits do not test normal, repair or replace the effected circuit(s).

⇒ | If the circuits test normal, replace the RSE control panel.

4. Using the scan tool, select the DTC display function. If DTC U2202 resets, replace the audio/video interface module.

### Repair Instructions

Perform the Diagnostic Repair Verification.

• | Video Disc Player Control Replacement

• | Audio/Video Interface Module Replacement