D3 Switch Circuit Troubleshooting
D3 Switch Circuit Troubleshooting1. Turn the ignition switch to LOCK (0).
2. Disconnect the D3 switch/park pin switch/A/T gear position indicator panel light harness connector.
3. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminals No. 1 and No. 3 when pressing the D3 switch.
Is there continuity when pressing the D3 switch once, and no continuity when pressing the switch again?
YES - Go to step 4.
NO - Replace the D3 switch.
4. Turn the ignition switch to ON (II).
5. Shift the shift lever to D, and select the D3 driving mode by pressing the D3 switch.
6. Measure the voltage between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminal No. 1 and body ground.
Is there battery voltage?
YES - Repair open in the wire between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminal No. 3 and body ground (G501), or repair poor body ground (G501).
NO - Go to step 7.
7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect PCM connector A (49P).
10. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminal No. 1 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between PCM connector terminal A17 and the D3 switch/park pin switch/A/T gear position indicator panel light harness connector.
NO - Go to step 11.
11. Check for continuity between D3 switch/park pin switch/A/T gear position indicator panel light harness connector terminal No. 1 and PCM connector terminal A17.
Is there continuity?
YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
NO - Repair open in the wire between PCM connector terminal A17 and the D3 switch/park pin switch/A/T gear position indicator panel light harness connector.