Diagnostic Instructions

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	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
5-Volt Reference	B1395 02, B1825 06, B1850 06, B2355 06, B2365 06, B2375 06, B2880 06, B3606 06	B1395 05, B1825 01, B1850 01, B2355 01, B2365 01, B2375 01, B2880 01, B3606 01	B2880 01	--
Steering Column Tilt Sensor Signal	B2880 06	B2880 06	B2880 01	B2880 5A
Steering Column Tilt Motor Control - Up	B2880 61, B3921 02	B2880 61	B2880 61, B3921 01	--
Steering Column Tilt Motor Control - Down	B2880 61, B3921 02	B2880 61	B2880 61, B3921 01	--
Low Reference	--	B2880 61	B2880 01	--

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

Reference Information

Schematic Reference

Steering Wheel Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Steering Wheel and Column Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Verification

Ignition ON, accuate the tilt function through the entire range of travel. The tilt parameter should display between 0.2 and 4.8 volts.

Circuit/System Testing

Tilt Sensor Circuit Malfunction

1. Ignition OFF, disconnect the harness connector X2 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. If all circuits test normal, test or replace the tilt actuator.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.