DTC P1721
DTC P1721 : Park Pawl Unit IG1 SW No Signal
NOTE: Before you troubleshoot, review the General Troubleshooting Information .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P1721 Park Pawl Unit IG1 SW No Signal |
DTC (Gear)
- 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 P1721 Park Pawl Unit IG1 SW No Signal Is DTC P1721 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 under-dash fuse/relay box 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.
- Fuse check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Check the following fuse.
Fuse No. D6 Is the fuse OK?
YES
The fuse is OK. Reinstall the fuse, then go to step 3.
NO
Replace the fuse, and recheck. If the fuse blows again, repair a short to ground in the fuse circuit.
- Open wire check (IG1_SRS2 line)
-1. Disconnect the following connector.
Park pawl actuator driver unit 26P connector -2. Turn the vehicle to the ON mode.
-3. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Park pawl actuator driver unit 26P connector: disconnected Test point 1 Park pawl actuator driver unit 26P connector No. 15 Test point 2 Body ground Is there battery voltage?
YES
IG1_SRS2 wire is OK, go to step 4.
NO
Repair an open in the IG1_SRS2 wire between the No. D6 fuse and the park pawl actuator driver unit.
- Park pawl actuator driver unit check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Substitute a known-good park pawl actuator driver unit .
-3. Connect the following connectors.
Park pawl actuator driver unit 26P connector -4. Turn the vehicle to the ON mode.
-5. 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.
-6. Clear the DTC with the HDS.
-7. Turn the vehicle to the OFF (LOCK) mode.
-8. Turn the vehicle to the ON mode, and wait for at least 5 seconds.
-9. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC Freeze Frame P1721 Park Pawl Unit IG1 SW No Signal Is DTC P1721 indicated?
YES
The park pawl actuator driver unit is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .
NO