Circuit Description
The speed sensitive power steering (SSPS) control module controls the operation of the SSPS warning lamp. When the ignition switch is turned to the ON position, the SSPS control module turns ON the SSPS warning lamp for 3 seconds for a bulb check. Whenever a malfunction is detected within the VES system, the SSPS control module turns ON the SSPS warning lamp, notifying the driver that VES needs to be serviced.
Diagnostic Aids
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
| • | A short to ground in the SSPS warning lamp control circuit. |
| • | An internal SSPS control module malfunction. |
| • | An internal instrument cluster malfunction. |
If an intermittent malfunction exists, refer to Testing for Intermittent and Poor Connections in Wiring Systems.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Steering Assist Schematics Connector End View Reference: Steering Assist Connector End Views | |||
1 | Did you perform the Variable Effort Steering Diagnostic System Check? | Go to Step 2 | |
Is the SSPS warning lamp ON? | Go to Step 3 | Go to Step 5 | |
3 | Test the SSPS warning lamp control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 4 |
4 | Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console. Did you complete the replacement? | Go to Step 6 | -- |
5 | Replace the SSPS control module. Refer to Power Steering Control Module Replacement . Did you complete the replacement? | Go to Step 6 | -- |
6 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
