B2880
DTC B2860 or B2880
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.
DTC Descriptors
DTC B2880 01
- Tilt Position Sensor Circuit Short to Battery
DTC B2880 06
- Tilt Position Sensor Circuit Short to Ground or Open
DTC B2880 5A
- Tilt Position Sensor Circuit Plausibility Failure
DTC B2880 61
- Tilt Position Sensor Actuator Stuck
Diagnostic Fault Information
Circuit Description
The memory seat module (MSM) determines the position of the steering column based on inputs received from the tilt position sensors built into the tilt actuators. The MSM supplies a 5-volt reference and a low reference to the sensors and monitors the column position via the steering column tilt sensor signal circuit.
Conditions for Running the DTC
Ignition ON
Conditions for Setting the DTC
B2880 01
The steering column tilt sensor signal voltage is greater than 4.8 volts for more than 2 seconds.
B2880 06
The steering column tilt sensor signal voltage is less than 0.2 volt for more than 2 seconds.
B2880 5A
An incorrect steering column tilt sensor signal voltage is seen.
B2880 61
The steering column tilt sensor signal voltage does not change when the tilt actuator is commanded.
Action Taken When the DTC Sets
Steering column tilt operations are suspended.
Conditions for Clearing the DTC
* A current DTC will clear when the malfunction is no longer present
* A history DTC will clear after 50 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Tilt/Telescoping Steering Column Schematics Tilt/Telescoping Steering Column Schematics
Connector End View Reference
Component Connector End Views Connector Views
Description and Operation
Steering Wheel and Column 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
Ignition ON, command the tilt motor UP and DOWN with a scan tool. The reading should be between 0.2 and 4.8 volts.
Circuit/System Testing
Tilt Sensor Circuit Malfunction
1. Ignition OFF, disconnect the harness connector at the tilt actuator.
2. Ignition OFF, test for less than 10.0 ohms between the low reference circuit terminal E and ground.
• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the MSM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal D and ground.
• If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the MSM.
• If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.
4. Verify the scan tool Tilt Sensor parameter is less than 0.2 volt.
• If greater than the specified range, test the signal circuit terminal C for a short to voltage. If the circuit tests normal, replace the MSM.
5. Install a 3A fused jumper wire between the signal circuit terminal C and the 5-volt reference circuit terminal D. Verify the scan tool Tilt Sensor parameter is greater than 4.8 volts.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the MSM.
6. Install a test lamp between the control circuit terminal A and the control circuit terminal B.
7. Command the column to tilt up and down using the tilt switch. The test lamp should illuminate with each command.
• If the test lamp does not illuminate, test both control circuits for a short to ground or an open/high resistance. If the circuits test normal, replace the MSM.
8. If all circuits test normal, test or replace the tilt actuator.
Component Testing
Tilt Actuator
1. Ignition OFF, disconnect the harness connector at the tilt actuator.
2. Test for less than 2.0 ohms between the control terminal A and the control terminal B.
• If greater than the specified range, replace the tilt actuator.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Tilt Motor Replacement Service and Repair
* Control Module References Control Module References for MSM replacement, setup, and programming