Paddle Shifter - (Downshift Switch) Illumination Circuit Troubleshooting

SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repair or service.

1. Fuse check

   -1. Check the following fuse.

   Fuse	No. E15 (7.5 A)
   Location	Passenger's under-dash fuse/relay box

   Is the fuse OK?

   YES 

   The fuse is OK. Go to step 2.

   NO 

   Replace the No. E15 (7.5 A) fuse, and recheck. If the fuse blows again, repair a short to ground on the No. E15 (7.5 A) fuse circuit, and recheck.

2. Determine possible failure area (paddle shifter - (downshift switch), others)

   -1. Remove the driver's airbag .

   -2. Disconnect the following connector.

   Paddle shifter - (downshift switch) 4P connector

   -3. Turn the vehicle to the ON mode.

   -4. Turn the combination light switch to the PARKING (SMALL) position.

   -5. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Combination light switch PARKING (SMALL) position
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   Test circuit	ILL- (LED), ILL+
   Test point 1	Paddle shifter - (downshift switch) 4P connector No. 3 (PUR)
   Test point 2	Paddle shifter - (downshift switch) 4P connector No. 4 (YEL)

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   Is there battery voltage?

   YES 

   Replace the paddle shifter - (downshift switch) .

   NO 

   Go to step 3.

3. Determine possible failure area (ILL+ line, others)

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

   -2. Disconnect the following connector.

   Steering commander switch assembly connector B (16P)

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Combination light switch PARKING (SMALL) position
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   Test circuit	GND, +B
   Test point 1	Steering commander switch assembly connector B (16P) No. 1 (BLK)
   Test point 2	Steering commander switch assembly connector B (16P) No. 16 (WHT)

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   Is there battery voltage?

   YES 

   Go to step 4.

   NO 

   Go to step 7.

4. Shorted wire check (ILL+ line)

   -1. Turn the combination light switch to the OFF position.

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   Test circuit	ILL+
   Test point 1	Paddle shifter - (downshift switch) 4P connector No. 4 (YEL)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the ILL+ wire between the paddle shifter - (downshift switch) and the steering commander switch assembly connector B (16P), or replace the cable reel subharness .

   NO 

   Go to step 5.

5. Open wire check (ILL+ line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   Test circuit	ILL+
   Test point 1	Paddle shifter - (downshift switch) 4P connector No. 4 (YEL)
   Test point 2	Steering commander switch assembly connector B (16P) No. 3 (YEL)

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

   Is there continuity?

   YES 

   The ILL+ wire is OK. Go to step 6.

   NO 

   Repair an open in the ILL+ wire between the paddle shifter - (downshift switch) and the steering commander switch assembly connector B (16P), or replace the cable reel subharness .

6. Open wire check (ILL- (LED) line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   Test circuit	ILL- (LED)
   Test point 1	Paddle shifter - (downshift switch) 4P connector No. 3 (PUR)
   Test point 2	Steering commander switch assembly connector B (16P) No. 5 (PUR)

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

   Is there continuity?

   YES 

   The ILL- (LED) wire is OK. Replace the steering commander switch assembly .

   NO 

   Repair an open in the ILL- (LED) wire between the paddle shifter - (downshift switch) and the steering commander switch assembly connector B (16P), or replace the cable reel subharness .

7. Shorted wire check (+B line)

   -1. Turn the combination light switch to the OFF position.

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Disconnect the following connector.

   Cable reel connector C (20P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   	Cable reel connector C (20P): disconnected
   Test circuit	+B
   Test point 1	Steering commander switch assembly connector B (16P) No. 16 (WHT)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the +B wire between the steering commander switch assembly connector B (16P) and cable reel connector C (20P), or replace the cable reel subharness .

   NO 

   Go to step 8.

8. Open wire check (+B line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   	Cable reel connector C (20P): disconnected
   Test circuit	+B
   Test point 1	Steering commander switch assembly connector B (16P) No. 16 (WHT)
   Test point 2	Cable reel connector C (20P) No. 14 (WHT)

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

   Is there continuity?

   YES 

   The +B wire is OK. Go to step 9.

   NO 

   Repair an open in the +B wire between the steering commander switch assembly connector B (16P) and cable reel connector C (20P), or replace the cable reel subharness .

9. Determine possible failure area (GND line, others)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Paddle shifter - (downshift switch) 4P connector: disconnected
   	Steering commander switch assembly connector B (16P): disconnected
   	Cable reel connector C (20P): disconnected
   Test circuit	GND
   Test point 1	Steering commander switch assembly connector B (16P) No. 1 (BLK)
   Test point 2	Cable reel connector C (20P) No. 11 (BLK)

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   Is there continuity?

   YES 

   Go to step 11.

   NO 

   Go to step 10.

10. Open wire check (GND line)

    -1. Disconnect the following connector.

    Steering commander switch assembly connector A (16P)

    -2. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode
    	Paddle shifter - (downshift switch) 4P connector: disconnected
    	Steering commander switch assembly connector A (16P): disconnected
    	Steering commander switch assembly connector B (16P): disconnected
    	Cable reel connector C (20P): disconnected
    Test circuit	GND
    Test point 1	Steering commander switch assembly connector A (16P) No. 1
    Test point 2	Steering commander switch assembly connector A (16P) No. 3

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    Is there continuity?

    YES 

    Repair an open in the GND wire between the steering commander switch assembly connector B (16P) and cable reel connector C (20P), or replace the cable reel subharness .

    NO 

    The GND wire is OK. Replace the steering commander switch assembly .

11. Determine possible failure area (cable reel, others)

    -1. Remove the cable reel .

    -2. Turn the vehicle to the ON mode.

    -3. Turn the combination light switch to the PARKING (SMALL) position.

    -4. Measure the voltage between test points 1 and 2.

    Test condition	Vehicle ON mode
    	Combination light switch PARKING (SMALL) position
    	Paddle shifter - (downshift switch) 4P connector: disconnected
    	Steering commander switch assembly connector B (16P): disconnected
    	Cable reel connector A (20P): disconnected
    	Cable reel connector C (20P): disconnected
    Test circuit	GND, +B GLOVE BOX
    Test point 1	Cable reel connector A (20P) No. 1 (BLK)
    Test point 2	Cable reel connector A (20P) No. 2 (WHT)

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

    Is there battery voltage?

    YES 

    Replace the cable reel .

    NO 

    Go to step 12.

12. Open wire check (GND line)

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

    -2. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode
    	Paddle shifter - (downshift switch) 4P connector: disconnected
    	Steering commander switch assembly connector B (16P): disconnected
    	Cable reel connector A (20P): disconnected
    	Cable reel connector C (20P): disconnected
    Test circuit	GND
    Test point 1	Cable reel connector A (20P) No. 1 (BLK)
    Test point 2	Body ground

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

    Is there continuity?

    YES 

    The GND wire is OK. Repair an open in the +B GLOVE BOX wire between cable reel connector A (20P) and the passenger's under-dash fuse/relay box.

    NO 

    Repair an open in the GND wire between cable reel connector A (20P) and ground (G501), or repair poor ground (G501).