C15A4

C15A4-00-POWER STEERING ASSIST INHIBITED-VEHICLE SPEED TOO HIGH

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Continuously, with the engine over 300 RPM.

- Set Condition:
The Electro-Hydraulic Power Steering (EHPS) Pump Motor does not turn.





1. DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition switch from off to on.
4. With the scan tool, read DTCs.

Is the status Active for this DTC?

Yes

- Go To 2

No

- Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

2. EHPS PUMP MOTOR
1. Turn the steering wheel left and right.

Is there power steering assist?

Yes

- Replace and program the Electro-Hydraulic Power Steering (EHPS) Pump. Power Steering Pump - Removal.
- Perform the EHPS Verification Test. EHPS Verification Test.

No

- Replace and program the Electro-Hydraulic Power Steering (EHPS) Pump. Power Steering Pump - Removal.
- Perform the EHPS Verification Test. EHPS Verification Test.