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	B2860 06, B2880 06	B2860 06, B2880 06	B2860 01, B2880 01	--
Steering Column Tilt Sensor Signal	B2880 06	B2880 06	B2880 01	B2880 5A
Steering Column Telescope Sensor Signal	B2860 06	B2860 06	B2860 01	B2860 5A
Steering Column Tilt Motor Control - Up	B2880 61	B2880 61	B2880 61	--
Steering Column Tilt Motor Control - Down	B2880 61	B2880 61	B2880 61	--
Steering Column Telescope Motor Control - Forward	B2860 61	B2860 61	B2860 61	--
Steering Column Telescope Motor Control - Reverse	B2860 61	B2860 61	B2860 61	--
Low Reference	--	B2860 06, B2880 06	B2860 01	--

Circuit/System Description

The memory seat module - driver determines the position of the steering column based on inputs received from position sensor built into the tilt actuator. The memory seat module - driver supplies a 5-volt reference and a ground to the sensor and monitors the column position via the tilt sensor signal circuit.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

This DTC will set when the tilt sensor signal circuit voltage is less than 0.25 volt or greater than 4.75 volts for 2 seconds.

Action Taken When the DTC Sets

The memory seat module - driver will not allow the tilt actuator to operate during memory recall and/or easy exit operations. The actuator will still operate from the tilt/telescope switch.

Conditions for Clearing the DTC

Reference Information

Schematic Reference

Column Lock Schematics

Connector End View Reference

Description and Operation

Steering Wheel and Column Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References

Circuit/System Verification

Ignition ON, observe the scan tool Tilt Sensor parameter. The reading should be between 0.25 and 4.75 volts.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the tilt actuator.
2. Ignition OFF, test for less than 1.0 ohm resistance between the low reference circuit terminal E and ground

⇒	If greater than the specified range, test the low reference circuit for open/high resistance. If the circuit tests normal, replace the memory seat module - driver

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 memory seat module - driver

⇒	If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the memory seat module - driver

4. Verify the scan tool Tilt Sensor parameter is greater than 4.75 volts.

⇒	If less than the specified range, test the signal circuit terminal C for a short to ground. If the circuit tests normal, replace the memory seat module - driver.

5. Install a 3A fused jumper wire between the signal circuit terminal C and the low reference circuit terminal A. Verify the scan tool Tilt Sensor parameter is less than 0.25 volt.

⇒	If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the memory seat module - driver.

6. If all circuits tests normal, test or replace the tilt actuator.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.