Pinpoint Test Ai: PSCM (Power Steering Control Module) DTC (Diagnostic Trouble Code) C102D:00 High Friction Inside Power Steering
WARNING: This page is about a different car, the 2023 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to Steering GSB for additional connector and wiring inspection tips.
Refer to POWER STEERING CONTROLS for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Power Steering - System Operation and Component Description .
Description
- Description
- The PSCM monitors various inputs and outputs of the EPAS system in order to keep the system operating at peak capacity. Information provided by sensors (steering torque, vehicle speed, vehicle travel distance, ect.) are all compared to programmed and learned information. Likewise, outputs like the motor and steering rack (travel) are tested against programmed and learned information.
Pinpoint Test Applicability
- Pinpoint Test Applicability
- This test applies to the following diagnostic concerns:
- This test applies to PSCMDTC C102D High Friction Inside Power Steering only.
This test DOES NOT apply to any other DTC or symptom.
Pinpoint Test Purpose
- Pinpoint Test Purpose
- This test verifies the presence of PSCMDTC C102D and determines if the cause is mechanical or electrical in nature.
Diagnostic Aids
- Diagnostic Aids
- If DTC C102D sets, steering assist is unaffected during the current drive cycle but steering assist is removed starting at the next ignition cycle. The message center displays STEERING LOSS STOP SAFELY.
- If a damaged bellows boot(s) was discovered during inspection and this pinpoint test
DOES NOT lead to the installation of a new EPAS gear or bellows boot(s), ADDRESS the damaged boot(s) before returning the vehicle to the customer.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PSCM C102D:00 | High Friction Inside Power Steering: No Sub Type Information | This DTC sets if high friction is detected inside the steering gear. |
Possible Sources
- Steering gear internal failure