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6E–146 ENGINE DRIVEABILITY AND EMISSIONS 9 Using the DVM and check the TPS signal circuit. 1. Ignition “Off”, engine “Off”. 2. Install the breaker box as type A. (ECM disconnected) Refer to 6E-88 page. 3. Disconnect TPS connector. 4. Check the circuit for open, short to sensor ground or short to ground circuit. Was the problem found? Breaker box is not available: 1. Ignition “Off”, engine “Off”. 2. Disconnect the TPS connector and ECM connector. 3. Check the circuit for open, short to sensor ground or short to ground circuit. Was the problem found? — Repair faulty harness and verify repair Go to Step 12 10 Substitute a known good TPS and recheck. — Go to Step 11 Go to Step 12 11 Replace the TPS. — Verify repair - 12 Is the ECM programmed with the latest software — Verify repair Go to Step 12 13 Replace the ECM. — Verify repair — Step Action Value(s) Yes No J1-7 J1-32 Ω Breaker Box E-86 Ω 3 33 3 Ω 32 7 3 E60(J1) E68 |