Circuit/System Testing

Actual Pump Motor Current 

1. Ignition OFF, Wait 3 seconds, Ignition ON, All accessories OFF with a scan tool verify pump motor amperage to be 0 Amps
2. Ignition ON, Engine ON, All accessories OFF, Battery Voltage range to be between 4-9 Amps.
3. Turn steering wheel right until stop, turn slightly further and hold firmly in this position. The amperage range should be between 55-65 Amps.
4. Turn steering wheel left until stop, turn slightly further and hold firmly in this position. The amperage range should be between 55-65 Amps.
   • If the amperage is not within the specified range, replace the power steering control module.

• If the amperage is within the specified range, refer to desired pump speed.

Desired Pump Speed 

1. Ignition OFF, Wait 3 seconds, Ignition ON, All accessories OFF with a scan tool verify engine RPM is 0.
2. Engine Running, with a scan tool verify engine RPM to be 2660.
   • If the RPM is not specified value, replace the power steering control module.

• If the RPM is the specified value, refer to the Actual Pump Speed.

Actual Pump Speed 

1. Ignition OFF, Wait 3 seconds, Ignition ON, All accessories OFF, with a scan tool verify the engine RPM to be 0.
2. Engine Running, with a scan tool verify engine RPM range to be 2655-2665 RPM.
   • If the RPM is not within the specified range, replace the power steering control module.