Active Control Engine Mount (Acm) System (V6): Diagnosis Honda Crosstour I

DTC Clear

1. Clear the DTC with the HDS while the engine is stopped.
2. Turn the ignition switch to LOCK (0).
3. Turn the ignition switch to ON (II), and wait 30 seconds.
4. Turn the ignition switch to LOCK (0), and disconnect the HDS from the DLC.

DTC Troubleshooting Index

DTC TROUBLESHOOTING CHART

DTC P0A14: Front Engine Mount Actuator Circuit Malfunction; DTC P0AB6: Rear Engine Mount Actuator Circuit Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). Information marked with an asterisk (*) applies to the rear engine mount actuator. When testing the engine mount actuator, be sure to use a VOM capable of reading 0.01 ohms change of resistance. Be sure to zero the meter before checking the engine mount actuator. If the vehicle has been driven, allow the engine mount actuator to cool down for about 2 hours before testing.

Scheme 180

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Scheme 182

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Start the engine, and let it idle 20 seconds.
4. Check for Pending Confirmed DTCs with the HDS. Is DTC P0A14 and/or P0AB6* indicated? YES -Go to next step. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the front engine mount actuator (rear engine mount actuator)* 2P connector.
7. Disconnect engine mount control unit 16P connector.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between body ground and the appropriate engine mount control unit 16P connector terminal (see table). DTC CHART DTC ENGINE MOUNT ACTUATOR TERMINAL ENGINE MOUNT CONTROL UNIT TERMINAL WIRE COLOR P0AB6 Rear side No. 2 No. 1 GRN P0AB6 Rear side No. 1 No. 2 WHT P0A14 Front side No. 2 No. 5 RED P0A14 Front side No. 1 No. 3 BLU Is there battery voltage? YES -Repair a short to power in the wire between the engine mount control unit and the engine mount actuator, then go to step 13 . NO --Go to next step.
10. Turn the ignition switch to LOCK (0).
11. Check for continuity between engine mount control unit 16P connector terminals No. 3 and No. 5 (No. 1 and No. 2)*. Is there continuity? YES -Repair a short in the wire(s) between engine mount control unit 16P connector terminal No. 3 and No. 5 (No. 1 and No. 2)*, then go to step 14 . NO --Go to next step.
12. At the engine mount actuator side, measure the resistance between front engine mount actuator (rear engine mount actuator)* 2P connector terminals No. 1 and No. 2. NOTE: Zero-out the meter before testing to adjust the meter to the test leads. Is there about 0.48-0.54 ohms (68 °F/20 °C)? YES -Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator. If it is OK, replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ), then go to step 14 . NO -Replace the front engine mount (see «FRONT ENGINE MOUNT REMOVAL AND INSTALLATION»(ref-360086-S40368045942010042600000) ), or the rear engine mount (see «REAR ENGINE MOUNT REMOVAL AND INSTALLATION»(ref-360086-S13214594872010042600000) ), then go to step 14 .
13. Turn the ignition switch to LOCK (0).
14. Reconnect all connectors.
15. Turn the ignition switch to ON (II).
16. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
17. Start the engine, and let it idle 20 seconds.
18. Check for Pending or Confirmed DTCs with the HDS. Is DTC P0A14 and/or P0AB6* indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P0A15: Front Engine Mount Actuator Control Circuit Low Current; DTC P0AB7: Rear Engine Mount Actuator Control Circuit Low Current

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). Information marked with an asterisk (*) applies to the rear engine mount actuator. When testing the engine mount actuator, be sure to use a VOM capable of reading 0.01 ohms change of resistance. Be sure to zero the meter before checking the engine mount actuator. If the vehicle has been driven, allow the engine mount actuator to cool down for about 2 hours before testing.

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Scheme 187

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Start the engine, and let it idle 20 seconds.
4. Check for Pending or Confirmed DTCs with the HDS. Is DTC P0A15 and/or P0AB7* indicated? YES --Go to next step. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator, the engine mount control unit, and body ground (G302).
5. Turn the ignition switch to LOCK (0).
6. Disconnect the front engine mount actuator (rear engine mount actuator)* 2P connector.
7. At the engine mount actuator side, measure the resistance between front engine mount actuator (rear engine mount actuator)* 2P connector terminals No. 1 and No. 2. NOTE: Zero-out the meter before testing to adjust the meter to the test leads. Is there about 0.48-0.54 ohms (68 °F/20 °C)? YES --Go to next step. NO -Replace the front engine mount (see «FRONT ENGINE MOUNT REMOVAL AND INSTALLATION»(ref-360086-S40368045942010042600000) ) or the rear engine mount (see «REAR ENGINE MOUNT REMOVAL AND INSTALLATION»(ref-360086-S13214594872010042600000) ), then go to step 13 .
8. Disconnect engine mount control unit 16P connector.
9. Check for continuity between engine mount control unit 16P connector terminal No. 4 and body ground. Is there continuity? YES --Go to next step. NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 4 and body ground (G302), then go to step 13 .
10. Check for continuity between the appropriate engine mount control unit 16P connector terminal and body ground (see table). DTC CHART DTC ENGINE MOUNT ACTUATOR TERMINAL ENGINE MOUNT CONTROL UNIT TERMINAL WIRE COLOR P0AB7 Rear side No. 2 No. 1 GRN P0AB7 Rear side No. 1 No. 2 WHT P0A15 Front side No. 2 No. 5 RED P0A15 Front side No. 1 No. 3 BLU Is there continuity? YES -Repair a short to ground in the wire between the engine mount control unit and the engine mount actuator, then go to step 13 . NO --Go to next step.
11. Connect the appropriate front engine mount actuator (rear engine mount actuator)* 2P connector terminal to body ground with a jumper wire (see table). DTC CHART DTC ENGINE MOUNT ACTUATOR TERMINAL WIRE COLOR P0AB7 Rear side No. 2 GRN P0AB7 Rear side No. 1 WHT P0A15 Front side No. 2 RED P0A15 Front side No. 1 BLU
12. Check for continuity between the appropriate engine mount control unit 16P connector terminal and body ground (see table). DTC CHART DTC ENGINE MOUNT ACTUATOR TERMINAL ENGINE MOUNT CONTROL UNIT TERMINAL WIRE COLOR P0AB7 Rear side No. 2 No. 1 GRN P0AB7 Rear side No. 1 No. 2 WHT P0A15 Front side No. 2 No. 5 RED P0A15 Front side No. 1 No. 3 BLU Is there continuity? YES -Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator. If it is OK, replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ), then go to next step. NO -Repair an open in the wire between the engine mount control unit and the engine mount actuator, then go to next step.
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
16. Start the engine, and let it idle 20 seconds.
17. Check for Pending or Confirmed DTCs with the HDS. Is DTC P0A15 and/or P0AB7* indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the engine mount actuator, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P15AB: Engine Mount Control Unit Power Source Circuit Low Voltage

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

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Scheme 189

1. Turn the ignition switch to ON (II).
2. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16C5 indicated? YES -Do the troubleshooting for the DTC P16C5 (see «DTC P16C5: ENGINE MOUNT ACTUATOR CONTROL POWER CIRCUIT STUCK ON»(ref-360085-S26587116762010042600000) ). NO -Go to next step.
3. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
4. Start the engine, and let it idle 10 seconds.
5. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15AB indicated? YES -Go to next step. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the body ground (G302).
6. Turn the ignition switch to LOCK (0).
7. Inspect the No. B7 ACG (15A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to next step. NO -Repair a short to ground in the wire between the No. B7 ACG fuse and engine mount control unit 16P connector terminal No. 9. Also replace the No. B7 ACG fuse, then go to step 14 .
8. Check for poor connections or loose terminals at the engine mount control unit 16P connector. Are The Connections And The Terminals OK? YES -Go to next step. NO -Repair the connections or the terminals, then go to step 14 .
9. Disconnect engine mount control unit 16P connector.
10. Turn the ignition switch to ON (II).
11. Measure the voltage between engine mount control unit 16P connector terminal No. 9 and body ground. Is there battery voltage? YES -Go to next step. NO -Repair an open in the wire between the No. B7 ACG fuse and engine mount control unit 16P connector terminal No. 9. Turn the ignition switch to Lock (0), then go to step 14 .
12. Turn the ignition switch to LOCK (0).
13. Check for continuity between engine mount control unit 16P connector terminal No. 11 and body ground. Is there continuity? YES -Replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ), then go to next step. NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 11 and body ground (G302), then go to next step.
14. Reconnect all connectors.
15. Turn the ignition switch to ON (II).
16. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
17. Start the engine, and let it idle 10 seconds.
18. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15AB indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and body ground (G302), then recheck. If the symptom still does not go away, replace the engine mount control unit. NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P15AE: Cylinder Pause Signal 1 Malfunction ('10 Model)

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

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Scheme 193

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 3 CYLINDER ACTIVATION TEST with the HDS.
4. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15AE indicated? YES -Go to next step. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect engine mount control unit 16P connector.
7. Turn the ignition switch to ON (II).
8. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 3 CYLINDER ACTIVATION TEST with the HDS.
9. Measure the voltage between engine mount control unit 16P connector terminal No. 8 and body ground during 3 cylinder pause mode. Is there battery voltage? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If it is OK, replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ). Turn the ignition switch to LOCK (0), then go to step 16 . NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Jump the SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
12. Disconnect PCM connector A (49P).
13. Check for continuity between engine mount control unit 16P connector terminal No. 8 and body ground. Is there continuity? YES -Repair a short to ground in the wire between engine mount control unit 16P connector terminal No. 8 and PCM connector terminal A14, then go to step 16 . NO -Go to step 14.
14. Connect engine mount control unit 16P connector terminal No. 8 to body ground with a jumper wire.
15. Check for continuity between PCM connector terminal A14 and body ground. Is there continuity? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If it is OK, go to step 21 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No, 8 and PCM connector terminal A14, then go to step 16.
16. Reconnect all connectors.
17. Turn the ignition switch to ON (II).
18. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
19. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 3 CYLINDER ACTIVATION TEST with the HDS.
20. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15AE indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.
21. Reconnect all connectors.
22. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-360080-S11980508702010042600000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ).
23. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 3 CYLINDER ACTIVATION TEST with the HDS.
24. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15AE indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ), and retest. If the PCM was substituted and the symptom indicated goes away, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P15B0: CKP Sensor Signal Malfunction; DTC P15C0: CKP Sensor Signal Intermittent Interruption

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). If PGM-FI system's DTC P0335 and/or P0339 is stored at the same time as DTC P15B0 and/or P15C0, troubleshoot P0335 and/or P0339 first, then recheck for P15B0 and/or P15C0.

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Scheme 199

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Start the engine, and let it idle 20 seconds.
4. Check for pending or confirmed DTC's with the HDS. Is DTC P15B0 and/or P15C0 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Check for poor connections or loose terminals at the engine mount control unit 16P connector and PCM connector A (49P). Are the connections and terminals OK? YES -Go to step 7. NO -Repair the connections or terminals, then go to step 28 .
7. Disconnect CKP sensor 3P connector.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between engine mount control unit 16P connector terminal No. 12 and body ground. Is there about 5 V? YES -Go to step 10. NO -Go to step 20 .
10. Turn the ignition switch to LOCK (0).
11. Connect CKP sensor 3P connector terminal No. 3 to body ground with a jumper wire.
12. Turn the ignition switch to ON (II).
13. Measure the voltage between engine mount control unit 16P connector terminal No. 12 and body ground. Is there about 0 V? YES -Replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ). Turn the ignition switch to LOCK (0), then go to step 28 . NO -Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Remove the jumper wire from the CKP sensor 3P connector.
16. Jump the SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
17. Disconnect PCM connector A (49P).
18. Turn the ignition switch to ON (II).
19. Measure the voltage between PCM connector terminal A34 and body ground. Is there about 5 V? YES -Turn the ignition switch to LOCK (0), then go to step 33 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 12 and PCM connector terminal A34. Turn the ignition switch to LOCK (0), then go to step 28 .
20. Turn the ignition switch to LOCK (0).
21. Jump the SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
22. Disconnect the PCM connector A (49P).
23. Turn the ignition switch to ON (II).
24. Measure the voltage between engine mount control unit 16P connector terminal No. 12 and body ground. Is there about 5 V? YES -Turn the ignition switch to LOCK (0), then go to step 33. NO -Go to next step.
25. Turn the ignition switch to LOCK (0).
26. Disconnect the engine mount control unit 16P connector terminal No. 12 and body ground.
27. Check for continuity between engine mount control unit 16P connector terminal No. 12 and body ground. Is there continuity? YES -Repair a short to ground in the wire between engine mount control unit 16P connector terminal No. 12 and PCM connector terminal A34, then go to next step. NO -Replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ), then go to next step.
28. Reconnect all connectors.
29. Turn the ignition switch to ON (II).
30. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
31. Start the engine, and let it idle 20 seconds.
32. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15B0 and/or P15C0 Indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.
33. Reconnect all connectors.
34. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-360080-S11980508702010042600000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ).
35. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15B0 and/or P15C0 indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If the PCM was updated, substituted a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ), and retest. If the PCM was substituted and the symptom indicated goes away, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P15BD: Cylinder Pause Signal 2 Malfunction (10' Model)

Note. Before you troubleshoot, record all freeze data and any on-board. snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

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Scheme 203

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 4 CYLINDER ACTIVATION TEST with the HDS.
4. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15BD indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect engine mount control unit 16P connector.
7. Turn the ignition switch to ON (II).
8. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 4 CYLINDER ACTIVATION TEST with the HDS.
9. Measure the voltage between engine mount control unit 16P connector terminal No. 10 and body ground during 2 cylinder pause mode. Is there battery voltage? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If it is OK, replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ). Turn the ignition switch to LOCK (0), then go to step 16 . NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Jump the SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
12. Disconnect PCM connector A (49P).
13. Check for continuity between engine mount control unit 16P connector terminal No. 10 and body ground. Is there continuity? YES -Repair a short to ground in the wire between connector terminal engine mount control unit 16P connector terminal No. 10 and PCM connector terminal A15, then go to step 16 . NO -Go to step 14.
14. Connect engine mount control unit 16P connector terminal No. 10 to body ground with a jumper wire.
15. Check for continuity between PCM connector terminal A15 and body ground. Is there continuity? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If it is OK, go to step 21 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 10 and PCM connector terminal A15, then go to step 16.
16. Reconnect all connectors.
17. Turn the ignition switch to ON (II).
18. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
19. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 4 CYLINDER ACTIVATION TEST with the HDS.
20. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15BD indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to indicated DTC's troubleshooting.
21. Reconnect all connectors.
22. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-360080-S11980508702010042600000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ).
23. Select the VTEC TEST in the PGM-FI INSPECTION menu, and do the VPS TEST of the 4 CYLINDER ACTIVATION TEST with the HDS.
24. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15BD indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ), and retest. If the PCM was substituted and the symptom indicated goes away, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P15BE: CMP Sensor Signal Malfunction; DTC P15BF: CMP Sensor Signal Intermittent Interruption

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). If PGM-FI system's DTC P0365 and/or P0369 is stored at the same time as DTC P15BE and/or P15BF, troubleshoot P0365 and/or P0369 first, then recheck for P15BE and/or P15BF.

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1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Start the engine, and let it idle 20 seconds.
4. Check for Temporary DTCs or DTCs with the HDS. Is DTC P15BE and/or P15BF indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the PCM.
5. Turn the ignition switch to LOCK (0).
6. Check for poor connections or loose terminals at the engine mount control unit 16P connector and PCM connector A (49P). Are the connections and terminals OK? YES -Go to step 7. NO -Repair the connections or terminals, then go to step 28 .
7. Disconnect CMP sensor 3P connector.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between engine mount control unit 16P connector terminal No. 7 and body ground. Is there about 5 V? YES -Go to step 10. NO -Go to step 20 .
10. Turn the ignition switch to LOCK (0).
11. Connect CMP sensor 3P connector terminal No. 3 to body ground with a jumper wire.
12. Turn the ignition switch to ON (II).
13. Measure the voltage between engine mount control unit 16P connector terminal No. 7 and body ground. Is there about 0 V? YES -Replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ). Turn the ignition switch to LOCK (0), the go to step 28 . NO -Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Remove the jumper wire from the CMP sensor 3P connector.
16. Jump the SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
17. Disconnect PCM connector A (49P).
18. Turn the ignition switch to ON (II).
19. Measure the voltage between PCM connector terminal A35 and body ground. Is there about 5 V? YES -Turn the ignition switch to LOCK (0), then go to step 33 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 7 and PCM connector terminal A35. Turn the ignition switch to Lock (0), then go to step 28 .
20. Turn the ignition switch to LOCK (0).
21. Jump SCS line with the HDS. NOTE: This step must be done to protect the PCM from damage.
22. Disconnect PCM connector A (49P).
23. Turn the ignition switch to ON (II).
24. Measure the voltage between engine mount control unit 16P connector terminal No. 7 and body ground. Is there about 5V? YES -Turn the ignition switch to LOCK (0), then go to step 33. NO -Go to next step.
25. Turn ignition switch to LOCK (0).
26. Disconnect the engine mount control unit 16P connector.
27. Check for continuity between engine mount control unit 16P connector terminal No. 7 and body ground. Is there continuity? YES -Repair a short to ground in the wire between engine mount control unit 16P connector terminal No. 7 and PCM connector terminal A35, then go to step 28. NO -Replace the engine mount control unit (see «Engine Mount Control Unit Replacement»(ref-360085-S19041323442010042600000) ), then go to next step.
28. Reconnect all connectors.
29. Turn the ignition switch to ON (II).
30. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
31. Start the engine, and let it idle 20 seconds.
32. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15BE and/or P15BF indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.
33. Reconnect all connectors.
34. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-360080-S11980508702010042600000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ).
35. Check for Pending or Confirmed DTCs with the HDS. Is DTC P15BE and/or P15BF indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the PCM. If the PCM was updated, substituted a known-good PCM (see «SUBSTITUTING THE PCM»(ref-360056-S32194616542010042600000) ), and retest. If the PCM was substituted and the symptom indicated goes away, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-360080-S27881728262010042600000) ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P16C4: Engine Mount Actuator Control Power Circuit Stuck OFF

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

Scheme 210

Scheme 211

Scheme 212

Scheme 213

Scheme 214

Scheme 215

Scheme 216

1. Turn the ignition switch to ON (II).
2. Check the ACM UNIT SUPPLY VOLTAGE in the DATA LIST with the HDS. Is there battery voltage? YES -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the driver's under-dash fuse/relay box (active control engine mount (ACM) control relay). NO -Go to step 3.
3. Turn the ignition switch to LOCK (0)
4. Inspect the No.B14 ACM (10A) fuse in the driver's under-dash fuse/relay box. Is the fuse OK? YES -Go to step 9. NO -Go to step 5.
5. Remove the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-360087-S09401553722010042600000) ).
6. Disconnect driver's under-dash fuse/relay box connector G (13P).
7. Disconnect the engine mount control unit 16P connector.
8. Check for continuity between engine mount control unit 16P connector terminal No. 6 and body ground. Is there continuity? YES -Repair a short a ground in the wire between engine mount control unit 16P connector terminal No. 6 and the driver's under-dash fuse/relay box (ACM control relay). Also replace the No.B14 ACM (10A) fuse, then go to step 25. NO -Check the driver's under-dash fuse/relay box, and replace it if needed. Also replace the No. B14 ACM (10A) fuse, then go to step 25.
9. Remove the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-360087-S09401553722010042600000) ).
10. Disconnect engine mount control unit 16P connector.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between engine mount control unit 16P connector terminal No. 16 and body ground. Is there battery voltage? YES -Go to step 16. NO -Go to step 13.
13. Turn the ignition switch to LOCK (0).
14. Disconnect driver's under-dash fuse/relay box connector G (13P).
15. Check for continuity between engine mount control unit 16P connector terminal No. 16 and driver's under-dash fuse/relay box connector G (13P) terminal No. 7. Is there continuity? YES -Replace the driver's under-dash fuse/relay box; USA models (see «USA MODELS»(ref-360103-S35130117182010042600000) ), Canada models (see «CANADA MODELS»(ref-360103-S33586290172010042600000) ), then go to 25 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 16 and driver's under-dash fuse/relay box connector G terminal No. 7, then go to step 25.
16. Turn the ignition switch to LOCK (0).
17. Connect engine mount control unit 16P connector terminal No. 16 and body ground with a jumper wire.
18. Turn the ignition switch to ON (II).
19. Measure the voltage between engine mount control unit 16P connector terminal No. 6 and body ground. Is there battery voltage? YES -Go to step 23. NO -Go to step 20.
20. Turn the ignition switch to LOCK (0).
21. Disconnect driver's under-dash fuse/relay box connector G (13P).
22. Check for continuity between engine mount control unit 16P connector terminal No. 6 and driver's under-dash fuse/relay box connector G (13P) terminal No. 4 Is there continuity? YES -Replace the driver's under-dash fuse/relay box; USA models (see «USA MODELS»(ref-360103-S35130117182010042600000) ). Canada models (see «CANADA MODELS»(ref-360103-S33586290172010042600000) ), then go to 25 . NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 6 and driver's under-dash fuse/relay box connector G terminal No. 4, then go to 25 .
23. Turn the ignition switch to LOCK (0).
24. Check for continuity between engine mount control unit 16P connector terminal No. 4 and body ground. Is there continuity? YES -Replace the engine mount control unit (see «Engine Mount Control Unit Replacement»(ref-360085-S19041323442010042600000) ), then go to next step. NO -Repair an open in the wire between engine mount control unit 16P connector terminal No. 4 body ground G302, then go to next step.
25. Reconnect all connectors.
26. Turn the ignition switch to ON (II).
27. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
28. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16C4 indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the driver's under-dash fuse/relay box (active control engine mount (ACM) control relay), then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P16C5: Engine Mount Actuator Control Power Circuit Stuck ON

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

Scheme 217

Scheme 218

Scheme 219

1. Turn the ignition switch to ON (II).
2. Check the ACM UNIT SUPPLY VOLTAGE and ACM RELAY CONTROL in the DATA LIST with the HDS. Does the ACM UNIT SUPPLY VOLTAGE indicate battery voltage when the ACM RELAY CONTROL indicates OFF? YES -Go to step 3. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit and the driver's under-dash fuse/relay box (active control engine mount (ACM) control relay).
3. Turn the ignition switch to LOCK (0).
4. Disconnect driver's under-dash fuse/relay box connector G (13P).
5. Disconnect engine mount control unit 16P connector.
6. Check for continuity between engine mount control unit 16P connector terminal No. 16 and body ground. Is there continuity? YES -Repair a short to ground in the wire between engine mount control unit 16P connector terminal No. 16 and driver's under-dash fuse/relay box connector G terminal No. 7, then go to step 12 . NO -Go to step 7.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between engine mount control unit 16P connector terminal No. 6 and body ground. Is there battery voltage? YES -Repair a short to power in the wire between engine mount control unit 16P connector terminal No. 6 and driver's under-dash fuse/relay box connector G terminal No. 4, then go to step 12 . NO -Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Reconnect driver's under-dash fuse/relay box connector G (13P).
11. Measure the voltage between engine mount control unit 16P connector terminal No. 6 and body ground. Is there battery voltage? YES -Replace the driver's under-dash fuse/relay box; USA models (see «USA MODELS»(ref-360103-S35130117182010042600000) ), Canada models (see «CANADA MODELS»(ref-360103-S33586290172010042600000) ), then go to next step. NO -Replace the engine mount control unit (see «ENGINE MOUNT CONTROL UNIT REPLACEMENT»(ref-360085-S19041323442010042600000) ), then go to next step.
12. Reconnect all connectors.
13. Turn the ignition switch to ON (II).
14. Clear the DTC with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
15. Check for Pending or Confirmed DTCs with the HDS. Is DTC P16C5 Indicated? YES -Check for poor connections or loose terminals at the engine mount control unit and the driver's under-dash fuse/relay box (active control engine mount (ACM) control relay), then go to step 1 . NO -Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P16C6: Engine Mount Actuator High Voltage During Function Test

Note. Before you troubleshoot, record all freeze data and any on-board snapshots, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

1. Turn the ignition switch to ON (II).
2. Clear the DTCs with the HDS (see «HDS CLEAR COMMAND»(ref-360085-S06877338822010042600000) ).
3. Start the engine, and let it idle 20 seconds.
4. Check for Pending or Confirmed DTCs with the HDS. Are any Pending or Confirmed DTCs indicated? YES -Go to the indicated DTC's troubleshooting. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the engine mount control unit, the engine mount actuator, and body ground (G302).