| 1. | Turn the ignition switch ON (II), start the engine, and watch the EPS indicator. Does the EPS indicator come on? YES - If the EPS indicator comes on and goes off, it's OK. If the EPS indicator stays on or blinks, go to 10. NO - Go to 2. |
| 2. | Turn the ignition switch OFF, then ON (II) again, and watch the brake system indicator. Does the brake system indicator come on? YES - Go to 3. NO - Repair open in the indicator power source circuit.n
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| 3. | Connect gauge assembly connector B (10P) terminal No. 10 to body ground with a jumper wire. Does the EPS indicator come on? YES - Go to 7. NO - Go to gauge assembly troubleshooting.n |
| 4. | Turn the ignition switch OFF. |
| 5. | Disconnect EPS control unit connector C (13P). |
| 6. | Turn the ignition switch ON (II). |
| 7. | Connect EPS control unit connector C (13P) terminal No. 11 and body ground with a jumper wire. Does the EPS indicator come on? YES - Go to 8. NO - Repair open in the wire between gauge assembly and EPS control unit.n |
| 8. | Check for continuity between body ground and EPS control unit connector C (13P) terminals No. 1 and No. 5 individually. Is there continuity? YES - Go to 9. NO - Repair open in the wires between EPS control unit and body ground (G503).n |
| 9. | Measure the voltage between EPS control unit connector C (13P) terminal No. 6 and body ground. Is there battery voltage? YES - Check for loose wires or poor connectors at EPS control unit and gauge assembly connectors. If necessary, substitute a known-good EPS control unit and recheck.n NO - Repair open in the wire between No. 10 (7.5 A) fuse and EPS control unit.n |
| 10. | Turn the ignition switch OFF. |
| 11. | Disconnect EPS control unit connector C (13P). |
| 12. | Disconnect the connectors from the following units.
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| 13. | Check for continuity between EPS control unit connector C (13P) terminal No. 12 and body ground. Is there continuity? YES - Repair short to body ground in the SCS circuit.n NO - Go to 14. |
| 14. | Connect EPS control unit connector C (13P). |
| 15. | Turn the ignition switch ON (II). |
| 16. | Measure the voltage between data link connector (16P) terminal No. 1 and body ground. Is there about 6 V? YES - Go to 17. NO - Repair open in the wire between data link connector (16P) and EPS control unit.n |
| 17. | Turn the ignition switch OFF. |
| 18. | Connect all disconnected connectors. |
| 19. | Disconnect EPS control unit connector C (13P). |
| 20. | Turn the ignition switch ON (II), and start the engine. Does the EPS indicator go off? YES - Go to 21. NO - Repair short to body ground in the wire between EPS indicator and EPS control unit.n |
| 21. | Troubleshoot the gauge assembly. Is it normal? YES - Check for loose wires or poor connctions at EPS control unit and gauge assembly connectors. If necessary substitute a known-good EPS control unit and recheck.n NO - Replace the gauge assembly.n |