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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C0847 >> Test Description
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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
Schematic Reference: Power Steering Schematics 
Connector End View Reference: Power Steering Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
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 .
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 .
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 .
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 .
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 .
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 DTC C0847 reset?		 Go to Step 2  System OK
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