Paddle Shifter + (Upshift Switch) Circuit Troubleshooting (2014 2015 2016 2017)
SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repair or service.
- Problem verification
-1. Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
-2. Turn the vehicle to the ON mode.
-3. Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting .
-4. Check the parameter (s) below with the HDS when repeatedly pressing and releasing the paddle shifter + (upshift switch).
Signal Current conditions Values Unit Upshift Switch (ST) Is ON indicated when you are pressing the paddle shifter + (upshift switch) and OFF with the switch released?
YES
Intermittent failure, the system is OK at this time.
NO
The failure is duplicated. Go to step 2.
- Determine possible failure area (PCM, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS.
-3. Disconnect the following connector.
PCM connector A (51P) -4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode PCM connector A (51P): disconnected Test circuit PADDLE SW UP Test point 1 PCM connector A (51P) No. 33 (GRN) Test point 2 Body ground Is there continuity when pressing the paddle shifter + (upshift switch) and no continuity when the paddle shifter + (upshift switch) is released?
YES
Update the PCM if it does not have the latest software , or substitute a known-good PCM , then recheck. If the symptom goes away with a known-good PCM, replace the original PCM .
NO
Go to step 3.
- Determine possible failure area (paddle shifter + (upshift switch), others)
-1. Remove the steering wheel .
-2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Cable reel connector C (20P): disconnected PCM connector A (51P): disconnected Test circuit GND, PADDLE SW UP Test point 1 Cable reel connector C (20P) No. 12 (BLK) Test point 2 Cable reel connector C (20P) No. 18 (GRN) Is there continuity when pressing the paddle shifter + (upshift switch) and no continuity when the paddle shifter + (upshift switch) is released?
YES
Go to step 5.
NO
Go to step 4.
- Paddle shifter + (upshift switch) operation check
-1. Disconnect the following connector.
Paddle shifter + (upshift switch) 4P connector -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Cable reel connector C (20P): disconnected Paddle shifter + (upshift switch) 4P connector: disconnected PCM connector A (51P): disconnected Test circuit GND, PADDLE UP (PLUS) Test point 1 Paddle shifter + (upshift switch) 4P connector No. 1 (BRN) Test point 2 Paddle shifter + (upshift switch) 4P connector No. 2 (BRN) Is there continuity when pressing the paddle shifter + (upshift switch) and no continuity when the paddle shifter + (upshift switch) is released?
YES
The paddle shifter + (upshift switch) is OK. Replace the cable reel subharness .
NO
- Open wire check (GND line)
-1. Remove the cable reel .
-2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Cable reel connector A (20P): disconnected Cable reel connector C (20P): disconnected PCM connector A (51P): disconnected Test circuit GND Test point 1 Cable reel connector A (20P) No. 1 (BLK) Test point 2 Body ground Is there continuity?
YES
The GND wire is OK. Go to step 6.
NO
Repair an open in the GND wire between cable reel connector A (20P) and ground (G501), or repair poor ground (G501).
- Shorted wire check (PADDLE SW UP line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Cable reel connector A (20P): disconnected Cable reel connector C (20P): disconnected PCM connector A (51P): disconnected Test circuit PADDLE SW UP Test point 1 Cable reel connector A (20P) No. 6 (GRN) Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the PADDLE SW UP wire between cable reel connector A (20P) and the PCM.
NO
The PADDLE SW UP wire is not shorted. Go to step 7.
- Determine possible failure area (cable reel, others)
-1. Reconnect PCM connector A (51P) .
-2. Turn the vehicle to the ON mode.
-3. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Cable reel connector A (20P): disconnected Cable reel connector C (20P): disconnected Test circuit GND, PADDLE SW UP Test point 1 Cable reel connector A (20P) No. 1 (BLK) Test point 2 Cable reel connector A (20P) No. 6 (GRN) Is there battery voltage?
YES
NO
Go to step 8.
- Open wire check (PADDLE SW UP line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS.
-3. Disconnect the following connector.
PCM connector A (51P) -4. Connect terminals A and B with a jumper wire.
Terminal A Cable reel connector A (20P) No. 6 (GRN) Terminal B Body ground -5. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Cable reel connector A (20P): disconnected Cable reel connector C (20P): disconnected PCM connector A (51P): disconnected Cable reel connector A (20P) No. 6: jumped to body ground Test circuit PADDLE SW UP Test point 1 PCM connector A (51P) No. 33 (GRN) Test point 2 Body ground Is there continuity?
YES
The PADDLE SW UP wire is OK. Update the PCM if it does not have the latest software , or substitute a known-good PCM , then recheck. If the symptom goes away with a known-good PCM, replace the original PCM .
NO
Repair an open in the PADDLE SW UP wire between cable reel connector A (20P) and the PCM.