Glove Compartment: Testing and Inspection
Instrument Panel Compartment Door Latch Release Malfunction
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The Body Control Module (BCM) supplies a 12V reference voltage to the instrument panel multifunction switch through the release switch signal circuit. When the instrument panel multifunction switch is pressed, the release switch signal circuit is grounded through the instrument panel multifunction switch ground circuit and the reference voltage is pulled low within the BCM. In response, the BCM applies battery positive voltage to the Instrument Panel Compartment Door Unlatch Actuator relay control circuit, which energizes the coil side of the relay. The switch side of the Instrument Panel Compartment Door Unlatch Actuator relay then closes, supplying battery positive voltage through the relay and the instrument panel compartment door latch control circuit activating the latch releasing the instrument panel compartment door.
Reference Information
Schematic Reference
* Instrument Panel Compartment Schematics [1][2]Electrical Diagrams
* Door Lock/Indicator Schematics Door Lock/Indicator Schematics
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
Description and Operation
Instrument Panel Compartment Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Verification
1. Ignition ON.
2. Verify the scan tool Interior Glove Box Unlatch Switch parameter changes from Inactive to Active to Inactive when pressing the appropriate switch on the S48D Multifunction Switch 2 - Instrument Panel.
• If the parameter does not change
Refer to Circuit/System Testing - Instrument Panel Compartment Door Release Switch Inoperative.
• If the parameter changes
3. Verify the operation of the M91 Instrument Panel Compartment Door Unlatch Actuator activates when pressing the appropriate switch on the S48D Multifunction Switch 2 - Instrument Panel.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator does not activate
Refer to Circuit/System Testing - Instrument Panel Compartment Door Latch Inoperative.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator activates
4. All OK.
Circuit/System Testing
Instrument Panel Compartment Door Release Switch Inoperative
1. Ignition OFF, disconnect the X2 harness connector at the K9 Body Control Module, ignition ON.
2. Verify a test lamp illuminates between the B+ circuit terminal 3 and ground.
• If the test lamp does not illuminate and the circuit fuse is good
1. Ignition OFF.
2. Test for less than 2 ohms in the ignition circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse.
• If the test lamp does not illuminate and the circuit fuse is open
1. Ignition OFF.
2. Test for infinite resistance between the ignition circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance, replace the K9 Body Control Module.
• If the test lamp illuminates
3. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel. It may take up to 2 minutes for all vehicle systems to power down.
4. Test for less than 10 ohms between the ground circuit terminal 2 and ground.
• If 10 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 10 ohms
5. Ignition ON.
6. Test for greater than 10 V between the signal circuit terminal 7 and ground.
• If 10 V or less
1. Ignition OFF, disconnect the X2 harness connector at the K9 Body Control Module.
2. Test for infinite resistance between the signal circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance
3. Test for less than 2 ohms in the signal circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the K9 Body Control Module.
• If greater than 10 V
7. Test or replace the S48D Multifunction Switch 2 - Instrument Panel.
Instrument Panel Compartment Door Latch Inoperative
1. Ignition OFF and all vehicle systems OFF, disconnect the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 3 and ground.
• If 10 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 10 ohms
3. Ignition ON.
4. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground.
• If the test lamp does not illuminate and the circuit fuse is good
1. Ignition OFF.
2. Test for less than 2 ohms in the B+ circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse.
• If the test lamp does not illuminate and the circuit fuse is open
1. Ignition OFF.
2. Test for infinite resistance between the B+ circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance
3. Ignition OFF, disconnect the harness connector at the M91 Instrument Panel Compartment Door Unlatch Actuator.
4. Test for infinite resistance between the control circuit terminal 4 and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance, replace the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
• If the test lamp illuminates
5. Connect a test lamp between the control circuit terminal 1 and the ground circuit terminal 3.
6. Verify the test lamp turns ON and OFF when pressing the appropriate switch on the S48D Multifunction Switch 2 - Instrument Panel.
• If the test lamp is always OFF
1. Ignition OFF, disconnect the X1 harness connector at the K9 Body Control Module.
2. Test for infinite resistance between the control circuit terminal and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance
3. Test for less than 2 ohms in the control circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the K9 Body Control Module.
• If the test lamp is always ON
1. Ignition OFF, disconnect the X1 harness connector at the K9 Body Control Module, ignition ON.
2. Test for less than 1 V between the control circuit terminal and ground.
• If 1 V or greater, repair the short to voltage on the circuit.
• If less than 1 V, replace the K9 Body Control Module.
• If the test lamp turns ON and OFF
7. Verify that a test lamp does not illuminate between the control circuit terminal 4 and ground.
• If the test lamp illuminates
Repair the short to voltage on the control circuit.
• If the test lamp does not illuminate
8. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the M91 Instrument Panel Compartment Door Unlatch Actuator. It may take up to 2 minutes for all vehicle systems to power down.
9. Test for less than 10 ohms between the ground circuit terminal 2 and ground.
• If 10 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 10 ohms
10. Connect the harness connector at the M91 Instrument Panel Compartment Door Unlatch Actuator.
11. Ignition ON, connect a 10 A fused jumper wire between the B+ circuit terminal 5 and the control circuit terminal 4.
12. Verify the M91 Instrument Panel Compartment Door Unlatch Actuator is activated.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator does not activate
1. Ignition OFF, disconnect the harness connector at the M91 Instrument Panel Compartment Door Unlatch Actuator.
2. Test for less than 2 ohms in the control circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the M91 Instrument Panel Compartment Door Unlatch Actuator.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator activates
13. Test or replace the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
Component Testing
Relay Test
1. Ignition OFF, disconnect the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
2. Test for 60-180 ohms between terminals 1 and 3.
• If less than 60 ohms or greater than 180 ohms
Replace the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
• If between 60-180 ohms
3. Test for infinite resistance between the terminals listed below:
* 4 and 1
* 4 and 5
* 4 and 3
* 3 and 5
• If less than infinite resistance
Replace the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
• If infinite resistance
4. Install a 3 A fused jumper wire between relay terminal 1 and 12 V. Install a jumper wire between relay terminal 2 and ground.
5. Test for less than 2 ohms between terminals 5 and 4.
• If 2 ohms or greater
Replace the KR147 Instrument Panel Compartment Door Unlatch Actuator Relay.
• If less than 2 ohms
6. All OK.
Instrument Panel Compartment Door Release Switch
1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
2. Test for infinite resistance between the signal terminal 7 and the ground terminal 1 with the switch in the open position.
• If less than infinite resistance
Replace the S48D Multifunction Switch 2 - Instrument Panel.
• If infinite resistance
3. Test for less than 3 ohms between the signal terminal 7 and the ground terminal 1 with the switch in the closed position.
• If 3 ohms or greater
Replace the S48D Multifunction Switch 2 - Instrument Panel.
• If less than 3 ohms
4. All OK.
Instrument Panel Compartment Door Release Actuator
1. Ignition OFF, disconnect the harness connector at the M91 Instrument Panel Compartment Door Unlatch Actuator.
2. Install a 10 A fused jumper wire between the control terminal 1 and 12 V. Install a jumper wire between the ground terminal 2 and ground.
3. Verify the M91 Instrument Panel Compartment Door Unlatch Actuator activates.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator does not activate.
Replace the M91 Instrument Panel Compartment Door Unlatch Actuator.
• If the M91 Instrument Panel Compartment Door Unlatch Actuator does activate.
4. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Relay Replacement (Attached to Wire Harness) Relay Replacement (Attached to Wire Harness)Relay Replacement (Within an Electrical Center) Relay Replacement (Within an Electrical Center)
* Instrument Panel Compartment Door Latch Actuator Replacement Instrument Panel Compartment Door Latch Actuator Replacement
* Accessory Switch Replacement Service and Repair
* Control Module References Control Module References for BCM replacement, programming and setup