Shift Lock System Circuit Troubleshooting
- Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
- Turn the ignition switch to ON (II). Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
- Select Shift Lock Solenoid Test in the Miscellaneous Test Menu, and check that the shift lock solenoid operates with the HDS.
Does the shift lock solenoid work property?
YES -Go to step 16.
NO -Go to next step.
- Turn the ignition switch to LOCK (0).
- Remove the center console (see CENTER CONSOLE REMOVAL/INSTALLATION ).
- Disconnect the shift lock solenoid connector (see SHIFT LOCK SOLENOID REPLACEMENT ).
- Turn the ignition switch to ON (II).
- Measure the voltage between shift lock solenoid connector terminal No. 2 and body ground.
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Is there battery voltage?
YES -Go to next step.
NO -Check for a blown No. B5 (7.5 A) fuse in the driver's under-dash fuse/relay box. If the fuse is blown, replace it. If the fuse blows again, repair a short in the No. B5 (7.5A) driver's under-dash fuse circuit. If the fuse is OK, repair an open in the wire between shift lock solenoid connector terminal No. 2 and the driver's under-dash fuse/relay box.
- With the shift lever in P, and press the brake pedal. Do not press the accelerator pedal.
- Measure the voltage between shift lock solenoid connector terminals No. 1 and No. 2 while pressing the brake pedal.
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Is there battery voltage?
YES -Go to next step.
NO -Go to step 12.
- Release the brake pedal, and measure the voltage between shift lock solenoid connector terminals No. 1 and No. 2. The shift lever must be in P.
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Is there battery voltage?
YES -Repair a short to body ground in the wire between PCM connector terminal A2 and the shift lock solenoid connector.
NO -Check the shift lock mechanism (see SHIFT LOCK SOLENOID TEST ). If the mechanism is OK, replace the shift lock solenoid (see SHIFT LOCK SOLENOID REPLACEMENT ).
- Turn the ignition switch to LOCK (0).
- Jump the SCS line with the HDS.
- Disconnect PCM connector A (49P).
- Check for continuity between PCM connector terminal A2 and shift lock solenoid connector terminal No. 1.Fig 5: Checking Continuity Between PCM Connector Terminal A2 And Shift Lock Solenoid Connector Terminal No. 1
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Is there continuity?
YES -Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), and recheck. If the symptom goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT ).
NO -Repair an open in the wire between PCM connector terminal A2 and the shift lock solenoid connector terminal No. 1.
- Monitor the Brake Switch in the Data List with the HDS, and press the brake pedal.
Is the Brake Switch ON?
YES -Go to step 21.
NO -If the brake lights come on, go to next step. If the brake lights do not work, repair faulty brake light circuit.
- Turn the ignition switch to LOCK (0).
- Jump the SCS line with the HDS.
- Disconnect PCM connector A (49P).
- Measure the voltage between PCM connector terminal A8 and body ground while pressing the brake pedal and when the brake pedal is released.
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Is there battery voltage while pressing the brake pedal and about 0 V when the pedal is released?
YES -Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM, replace the original PCM (see PCM REPLACEMENT ).
NO -Repair an open in the wire between PCM connector terminal A8 and the brake pedal position switch.
- Monitor the A/T P switch with the HDS in the A/T Data List with the shift lever P.
Is the A/T P Switch ON?
YES -Go to step 28.
NO -Go to next step.
- Turn the ignition switch to LOCK (0).
- Disconnect the transmission range switch connector.
- Connect a jumper wire between transmission range switch connector terminals No. 9 and No. 10.
- Turn the ignition switch to ON (II).
- Check the A/T P switch with the HDS in the A/T Data List.
Is the transmission range OK?
YES -Check for poor connections or loose terminals at the transmission range switch connector.
NO -Go to next step.
- Inspect the transmission range switch, (see TRANSMISSION RANGE SWITCH TEST
)
Is the transmission range OK?
YES -Check for poor connections or loose terminals at the transmission range switch connector.
NO -Go to next step.
- Turn the ignition switch to LOCK (0).
- Remove the jumper wire.
- Jump the SCS line with the HDS.
- Disconnect PCM connector A (49P).
- Check for continuity between PCM connector terminal A16 and body ground.
Is there continuity?
YES -Repair a short to body ground in the wire between PCM connector terminal A16 and the transmission range switch connector terminal A16 and body ground.
NO -Go to next step.
- Check for continuity between PCM connector terminal A16 and transmission range switch connector terminal No. 9.
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Is there continuity?
YES -Go to next step.
NO -Repair an open in the wire between PCM connector terminal A16 and the transmission range switch connector terminal No. 9.
- Check for continuity between transmission range switch connector terminal No. 10 and body ground.Fig 10: Checking Continuity Between Transmission Range Switch Connector Terminal No. 10 And Body Ground
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Is there continuity?
YES -Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), and recheck. If the symptom goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT ).
NO -Repair an open in the wire between transmission range switch connector terminal No. 10 and body ground (G101), or repair poor body ground (G101).
- Check APP Sensor (%) and APP sensor (V) with the HDS in the A/T Data List. Do not press the accelerator pedal.
Is APP sensor (%) opening 5 % or more, or is APP Sensor A (V) 1.16 V or higher?
YES -Check the APP sensor (see APP SENSOR SIGNAL INSPECTION ).
NO -Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), and recheck. If the symptom goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT ).