EPS

EPS DTC Troubleshooting: 22

DTC 22: Vehicle Speed Signal

NOTE:

- If the MIL is ON, troubleshoot the fuel and emissions systems first.

- When the engine is running at 2,000 rpm or above and the vehicle speed is 1 mph (1 km/h) or below for 3 minutes, the EPS indicator comes on.

1. Test-drive the vehicle.

Is the vehicle speedometer working correctly?
YES - Go to step 2.

NO - Do the speedometer system troubleshooting: '00-05 models, '06-09 models. Testing and Inspection


2. Turn the ignition switch to LOCK (0).

3. Block the front wheels and release the parking brake.

4. Raise the vehicle, and support it with safety stands in the proper locations. Service and Repair

5. Disconnect EPS control unit connector B (14P).

6. Block the right rear wheel, and slowly rotate the left rear wheel and measure the voltage between EPS control unit connector B (14P) terminal No. 2 and body ground.

Does the voltage pulse 0 V and 5 V ?
YES - Check for loose terminals in the EPS control unit connectors. If necessary, substitute a known-good EPS control unit and recheck.

NO - Repair open or short to body ground in the wire between the EPS control unit and body ground, or faulty speedometer.