DTC P171C

DTC P171C  : Park Pawl System Multiple Sensor Correlation

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. With the brake pedal pressed and the accelerator released, shift the transmission to N position/mode, then shift back to P position/mode, and wait for at least 5 seconds.

   -6. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P07B3 Transmission Park Position Sensor/Switch A Circuit Low
   P07B4 Transmission Park Position Sensor/Switch A Circuit High
   P07B5 Transmission Park Position Sensor/Switch A Out of Range Low
   P07B6 Transmission Park Position Sensor/Switch A Out of Range High
   P07B9 Transmission Park Position Sensor/Switch B Circuit Low
   P07BA Transmission Park Position Sensor/Switch B Circuit High
   P07BB Transmission Park Position Sensor/Switch B Out of Range Low
   P07BC Transmission Park Position Sensor/Switch B Out of Range High
   P1716 Transmission Park Position Sensor/Switch A/B Short
   P171C Park Pawl System Multiple Sensor Correlation
   P1724 Transmission Park Position Sensor/Switch A/B Incorrect Voltage Correlation

   Is DTC P07B3, P07B4, P07B5, P07B6, P07B9, P07BA, P07BB, P07BC, P1716, P171C and/or P1724 indicated?

   Only DTC P171C is indicated 

   The failure is duplicated. Go to step 2.

   Except DTC P171C is indicated 

   The failure is duplicated. Go to the indicated DTC's troubleshooting.

   • DTC Troubleshooting: P07B3 
   • DTC Troubleshooting: P07B4 
   • DTC Troubleshooting: P07B5 
   • DTC Troubleshooting: P07B6 
   • DTC Troubleshooting: P07B9 
   • DTC Troubleshooting: P07BA 
   • DTC Troubleshooting: P07BB 
   • DTC Troubleshooting: P07BC 
   • DTC Troubleshooting: P1716 
   • DTC Troubleshooting: P1724 

   No DTCs are indicated 

   Intermittent failure, the system is OK at this time. 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. Park pawl actuator check

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

   -2. Substitute a known-good park pawl actuator .

   -3. Turn the vehicle to the ON mode.

   -4. Clear the DTC with the HDS.

   -5. Turn the vehicle to the OFF (LOCK) mode.

   -6. Turn the vehicle to the ON mode, and wait for at least 10 seconds.

   -7. With the brake pedal pressed and the accelerator released, shift the transmission to N position/mode, then shift back to P position/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
   P171C Park Pawl System Multiple Sensor Correlation

   Is DTC P171C indicated?

   YES 

   The park pawl actuator is OK. Go to step 3.

   NO 

   Replace the original park pawl actuator .

3. Park mechanism component part check

   -1. Remove the transmission (e-CVT) .

   -2. Disassemble the transmission (e-CVT) .

   Check the following park mechanism component parts on the transmission housing for wear and damage.

   • Parking gear
   • Parking pawl spring
   • Parking brake pawl
   • Parking brake shaft
   • Parking brake rod holder and its lock washer

   Is there any worn or damaged part?

   YES 

   Replace the worn or damaged component part on the transmission housing.

   NO 

   The park mechanism component parts are OK. Faulty transmission park mechanism. Replace the transmission (e-CVT) .