Pinpoint Test A: DTC B2328 - STEERING COLUMN REACH (TELESCOPIC) FEEDBACK POTENTIOMETER CIRCUIT FAILURE
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
- A1 CHECK FOR CONTINUOUS DIAGNOSTIC TROUBLE CODES (DTCS)
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Continuous DTCs.
- Is DTC B2328 present?
- A2 CHECK FOR MECHANICAL FAULTS
- Disconnect and reconnect the battery.
- Enter the following diagnostic mode on the diagnostic tool: Clear Instrument Cluster DTCs.
- Actuate the steering column to the full IN position.
- Actuate the steering column to the full OUT position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Self-Test.
- Is DTC B2328 present?
- Yes : GO to A3.
- No : The system was deactivated due to the instrument cluster registering an excessive number of motion faults. NOTIFY the owner that the concern has been corrected.
- A3 CHECK THE STEERING COLUMN BEARINGS
- Remove the steering column shrouds.
- Make sure the steering column bearings are fully seated back against the stops.
- Are the steering column bearings correctly seated back against the stops?
- Yes : GO to A4.
- No : INSTALL a new steering column. REFER to STEERING COLUMN in this article . CLEAR the DTCs. REPEAT the self-test.
- A4 ISOLATE THE STEERING COLUMN POSITION SENSOR
- Disconnect: Steering Column Position Sensor C222.
- Connect a jumper wire between the steering column position sensor C222-4, circuit 9-AL17 (BN/WH), harness side and the steering column position sensor terminal 1.
- Connect a jumper wire between the steering column position sensor C222-2, circuit 7-AL17 (YE/VT), harness side and the steering column position sensor terminal 4.
- Connect a jumper wire between the steering column position sensor C222-3, circuit 8-AL17 (WH/VT) and the steering column position sensor terminal 3.
- Connect a jumper wire between the steering column position sensor C222-1, circuit 8-AL16 (WH/BK) and the steering column position sensor terminal 2.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Self-Test.
- Is DTC B2328 retrieved?
- Yes : INSTALL a new steering column. REFER to STEERING COLUMN in this article . CLEAR the DTCs. REPEAT the self-test.
- No : GO to A5.
- A5 CHECK FOR STEERING COLUMN MOVEMENT NOTE: This active command will only power the motors for 1 second.
- Enter the following diagnostic mode on the diagnostic tool: Tilt Motor UP Command.
- Enter the following diagnostic mode on the diagnostic tool: Tilt Motor DOWN Command.
- Does the steering column tilt up and down?
- A6 ISOLATE THE TILT/TELESCOPE MOTOR
- Disconnect: Tilt/Telescope Motor C227.
- Connect a voltmeter between the tilt/telescope motor C227-3, circuit 35-AL7 (VT/BK), harness side and the tilt/telescope motor -C2274, circuit 34-AL7 (BU/BK), harness side.
- Enter the following diagnostic mode on the diagnostic tool: Telescope Motor IN Command.
- Enter the following diagnostic mode on the diagnostic tool: Telescope Motor OUT Command.
- Measure the voltage while triggering the active commands.
- Is voltage present for one second after each command is sent?
- Yes : INSTALL a new telescope motor. REFER to STEERING COLUMN in this article . CLEAR the DTCs. REPEAT the self-test.
- No : GO to A7.
- A7 CHECK CIRCUIT 8-AL17 (WH/VT) FOR A SHORT TO VOLTAGE
- Disconnect: Instrument Cluster C220c.
- Measure the voltage at the instrument cluster C220c-20, circuit 8-AL17 (WH/VT), harness side.
- Is voltage present?
- Yes : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
- No : GO to A8.
- A8 CHECK CIRCUIT 8-AL17 (WH/VT) FOR A SHORT TO GROUND
- Measure the resistance between the instrument cluster C220c-20, circuit 8-AL17 (WH/VT), harness side and ground.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to A9.
- No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
- A9 CHECK CIRCUIT 8-AL17 (WH/VT) FOR AN OPEN
- Measure the resistance between the instrument cluster C220c-20, circuit 8-AL17 (WH/VT), harness side and steering column position sensor C222-3, circuit 8-AL17 (WH/VT), harness side.
- Is the resistance less than 5 ohms?
- Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . REPEAT the self-test.
- No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.