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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C0899 >> Test Description
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test Description

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

  1. 2:  Tests if the malfunction exists in the vehicles charging system.
  2. 3:  Tests if the malfunction is in the EPS system.
DTC C0899

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. Turn ON the scan tool.
Does the scan tool power up and communicate with the engine control module (ECM)?		 Go to Step 3  Go to Diagnostic System Check - Vehicle
3  With the scan tool observe the Battery Voltage parameter in the electric power steering (EPS) Data List 1.
Does the scan tool display less than 8 Volts?		 Go to Step 3  Go to Diagnostic Aids
4 Test the battery positive voltage circuit of the power steering control module (PSCM) for a high resistance. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?		 Go to Step 10  Go to Step 5 
5 Test the ground circuit of the PSCM for a high resistance. Refer to Circuit Testing and to Wiring Repairs .
Did you find and correct the condition?		 Go to Step 10  Go to Step 6 
6 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 7 
7 Inspect for poor connections at the harness connector of the underhood fuse block stud terminal. 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 ground connector, G109. 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 C0899 reset?		 Go to Step 2  System OK
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