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Test Description

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

  1. 2:  Tests if the malfunction is intermittent.
  2. 5:  Tests if a short to ground exists in the ignition 1 voltage circuit, or in the PSCM.
DTC C0847

Step Action Yes No
Connector End Views Reference: Power Steering System Connector End Views 
1 Did you perform the Power Steering Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Power Steering System 
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, attempt to establish communication with the power steering control module (PSCM).
Does the scan tool communicate with the PSCM?		 Go to Diagnostic Aids Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Inspect the 2 A EPS fuse for an open.
Is the fuse open?		 Go to Step 4  Go to Step 6 
4
  1. Replace the 2 A EPS fuse.
  2. Turn ON the ignition, with the engine OFF.
Does the fuse open?		 Go to Step 5  Go to Diagnostic Aids
5  Test the ignition 1 voltage circuit of the PSCM for a short to ground. Refer to Testing for Short to Ground and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 10  Go to Step 9 
6 Test the ignition 1 voltage circuit of the PSCM for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 10  Go to Step 7 
7 Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 10  Go to Step 8 
8 Inspect for poor connections at the harness connector of the PSCM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 10  Go to Step 9 
9 Replace the EPS assembly. Refer to Steering Column Replacement in Steering Wheel and Column.
Did you complete the replacement?		 Go to Step 10  -
10
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC.
Does the DTC reset?		 Go to Step 2  System OK
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