DTC P1720

DTC P1720  : Park Pawl Motor Current Range/Performance

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC (Gear)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode, and wait for at least 10 seconds.

   -5. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1720 Park Pawl Motor Current Range/Performance

   Is DTC P1720 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the park pawl actuator and the park pawl actuator driver unit. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

2. Shorted wire check (MAU/P-ACT MTR U line, MAV/P-ACT MTR V line, MAW/P-ACT MTR W line to power)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connectors.

   Park pawl actuator 10P connector

   Park pawl actuator driver unit 26P connector

   -3. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Park pawl actuator 10P connector: disconnected
   	Park pawl actuator driver unit 26P connector: disconnected
   Test point 1	Park pawl actuator 10P connector (female terminals) No. 1:
   Test point 2	Body ground
   Test point 1	Park pawl actuator 10P connector (female terminals) No. 6:
   Test point 2	Body ground
   Test point 1	Park pawl actuator 10P connector (female terminals) No. 7
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there voltage?

   YES 

   Repair a short to power in the MAU/P-ACT MTR U wire, the MAV/P-ACT MTR V wire, and/or the MAW/P-ACT MTR W wire between the park pawl actuator and the park pawl actuator driver unit. .

   NO 

   The MAU/P-ACT MTR U wire, MAV/P-ACT MTR V wire, and/or MAW/P-ACT MTR W wire are not shorted to power. Go to step 3.

3. Park pawl actuator driver unit check

   -1. Substitute a known-good park pawl actuator driver unit .

   -2. Connect the following connectors.

   Park pawl actuator 10P connector

   Park pawl actuator driver unit 26P connector

   -3. Turn the vehicle to the ON mode.

   -4. Update the park pawl actuator driver unit .

   WARNING:

   Do not turn the vehicle to the OFF (LOCK) mode. Turing the vehicle to the OFF (LOCK) mode during an update can damage the park pawl actuator driver unit.

   -5. Clear the DTC with the HDS.

   -6. Turn the vehicle to the OFF (LOCK) mode.

   -7. Turn the vehicle to the ON mode, and wait for at least 5 seconds.

   -8. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1720 Park Pawl Motor Current Range/Performance

   Is DTC P1720 indicated?

   YES 

   The park pawl actuator driver unit is OK. Replace the park pawl actuator .

   NO 

   Replace the original park pawl actuator driver unit .