DTC P07B9
DTC P07B9 : Transmission Park Position Sensor/Switch B Circuit Low
- Before you troubleshoot, review the General Troubleshooting Information .
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission (e-CVT).
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P07B9 Transmission Park Position Sensor/Switch B Circuit Low |
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. Monitor the OBD STATUS for P07B3 and P07B9 in the DTCs MENU with the HDS.
DTC Description OBD Status P07B3 Transmission Park Position Sensor/Switch A Circuit Low P07B9 Transmission Park Position Sensor/Switch B Circuit Low Does the HDS indicate FAILED?
DTC P07B3 and P07B9 indicate FAILED
The failure is duplicated. Go to step 2.
Only DTC P07B9 indicates FAILED
The failure is duplicated. Go to step 5.
DTC P07B3 and P07B9 indicate PASSED
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the park position sensor and the SBW shifter control module. 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.
- Determine possible failure area (park position sensor, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Park position sensor 4P connector -3. Turn the vehicle to the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Park position sensor 4P connector: disconnected Test point 1 Park position sensor 4P connector (female terminals) No. 1: Test point 2 Park position sensor 4P connector (female terminals) No. 2: Is there about 5 V?
YES
Replace the park position sensor .
NO
Go to step 3.
- Open wire check (VCC/SBW VCC1 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
SBW shifter control module 20P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Park position sensor 4P connector: disconnected SBW shifter control module 20P connector: disconnected Test point 1 Park position sensor 4P connector (female terminals) No. 1: Test point 2 SBW shifter control module 20P connector No. 12 Is there continuity?
YES
The VCC/SBW VCC1 wire is OK. Go to step 4.
NO
Repair an open in the VCC/SBW VCC1 wire between the park position sensor and the SBW shifter control module.
- Open wire check (GND/SBW SG1 line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Park position sensor 4P connector: disconnected SBW shifter control module 20P connector: disconnected Test point 1 Park position sensor 4P connector (female terminals) No. 2: Test point 2 SBW shifter control module 20P connector No. 2 Is there continuity?
YES
The GND/SBW SG1 wire is OK. Faulty SBW shifter control module. Replace the SBW shifter assembly .
NO
Repair an open in the GND/SBW SG1 wire between the park position sensor and the SBW shifter control module.
- Shorted wire check (PSEN2/SBW PPOS2 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Park position sensor 4P connector SBW shifter control module 20P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Park position sensor 4P connector: disconnected SBW shifter control module 20P connector: disconnected Test point 1 Park position sensor 4P connector (female terminals) No. 4: Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the PSEN2/SBW PPOS2 wire between the park position sensor and the SBW shifter control module.
NO
The PSEN2/SBW PPOS2 wire is not shorted. Go to step 6.
- Open wire check (PSEN2/SBW PPOS2 line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Park position sensor 4P connector: disconnected SBW shifter control module 20P connector: disconnected Test point 1 Park position sensor 4P connector (female terminals) No. 4: Test point 2 SBW shifter control module 20P connector No. 4 Is there continuity?
YES
The PSEN2/SBW PPOS2 wire is OK. Go to step 7.
NO
Repair an open in the PSEN2/SBW PPOS2 wire between the park position sensor and the SBW shifter control module.
- Determine possible failure area (park position sensor, SBW shifter control module)
-1. Reconnect all connectors.
-2. Turn the vehicle to the ON mode.
-3. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Test point 1 SBW shifter control module 20P connector No. 2 Test point 2 SBW shifter control module 20P connector No. 4 Is there 0.1 V or more?
YES
Faulty SBW shifter control module. Replace the SBW shifter assembly .
NO