For 1990-2009 cars

### 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:

• | An open in the SSPS warning lamp control circuit

• | An internal SSPS control module malfunction

• | An internal instrument cluster malfunction

• | An inoperative lamp bulb

If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections .

### Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. Determines if the malfunction is caused by an internal SSPS control module malfunction.

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Steering Assist Schematics Connector End View Reference: Steering Assist Connector End Views
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 | Do any of the other instrument cluster indicators or gages function? | Go to Step 3 | Go to Symptoms - Instrument Panel, Gages and Console
3 |

1. Turn OFF the ignition.
2. Disconnect the speed sensitive power steering (SSPS) control module electrical connector.
3. Connect a 3-amp fused jumper wire between the SSPS warning lamp control circuit and ground.
4. Turn ON the ignition, with the engine OFF.

Does the SSPS warning lamp turn ON?

Go to Step 7

Go to Step 4

4 | Test the SSPS warning lamp control circuit for a short to ground. Refer to Circuit Testing and LINK . Did you find and correct the condition? | Go to Step 8 | Go to Step 5
5 |

1. Remove the instrument cluster. Refer to Instrument Cluster Replacement .
2. Inspect the SSPS warning lamp bulb for an open. Replace if necessary.

Did you find and complete the repair?

Go to Step 8

Go to Step 6

6 | Replace the instrument cluster. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 8 | --
7 | Replace the SSPS control module. Refer to Power Steering Control Module Replacement . Did you complete the replacement? | Go to Step 8 | --
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2