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DTC P0706

DTC P0706  : Transmission Range Switch (Open)

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and 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.
DTC Description Confirmed DTC Pending DTC Freeze Frame
P0706 Transmission Range Switch (Open)      

DTC (A/T)

  1. Problem verification

    -1. Make sure the shift cable is properly adjusted.

    -2. Turn the vehicle to the ON mode.

    -3. Compare the transmission range switch signal inputs with the HDS to the following table, in each shift lever position.

      A/T P Switch A/T R Switch A/T N Switch A/T D Switch Forward Switch (ATPFWD) Reverse Switch (ATPRVS)
    P ON OFF OFF OFF OFF OFF
    R OFF ON OFF OFF OFF ON
    N OFF OFF ON OFF OFF OFF
    D OFF OFF OFF ON ON OFF
    Signal Current conditions
    Values Unit
    A/T P Switch    
    A/T R Switch    
    A/T N Switch    
    A/T D Switch    
    Forward Switch (ATPFWD)    
    Reverse Switch (ATPRVS)    

    Do the signals match?

    YES 

    Intermittent failure, the system is OK at this time.

    NO 

    The failure is duplicated. Go to step 2.

  2. Transmission range switch signal check

    -1. Check the parameter(s) below with the HDS, in each shift lever position.

    Signal Current conditions
    Values Unit
    A/T P Switch    
    A/T R Switch    
    A/T N Switch    
    A/T D Switch    
    Forward Switch (ATPFWD)    
    Reverse Switch (ATPRVS)    

    Do all signals remain OFF?

    YES 

    Go to step 5.

    NO 

    Record the abnormal circuit, then go to step 3.

  3. Transmission range switch check

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

    -2. Disconnect the following connector.

    Transmission range switch 10P connector

    -3. Connect terminals A and B with a jumper wire.

    Terminal A Corresponding circuit (did not indicate ON in step 2); refer to following table
    Terminal B Body ground
    Connector Signal Circuit Terminal
    Transmission range switch 10P connector A/T P Switch ATPP No. 9 (BLU)
    A/T R Switch ATPR No. 8 (WHT)
    A/T N Switch ATPN No. 2 (PUR)
    A/T D Switch ATPD No. 7 (LT GRN)
    Forward Switch (ATPFWD) ATPFWD No. 1 (YEL)
    Reverse Switch (ATPRVS) ATPRVS No. 5 (PNK)
    GHH345018Courtesy of HONDA, U.S.A., INC.

    -4. Turn the vehicle to the ON mode.

    -5. Check the parameter(s) below that did not indicate ON with the HDS.

    Signal Current conditions
    Values Unit
    A/T P Switch    
    A/T R Switch    
    A/T N Switch    
    A/T D Switch    
    Forward Switch (ATPFWD)    
    Reverse Switch (ATPRVS)    

    Does the signal indicate ON?

    YES 

    Replace the transmission range switch .

    NO 

    The transmission range switch is OK. Go to step 4.

  4. Open wire check (ATPP, ATPR, ATPN, ATPD, ATPFWD, ATPRVS line)

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

    -2. Jump the SCS line with the HDS.

    -3. Disconnect the following connectors.

    PCM connector A (51P)
    PCM connector B (51P)

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

    Test condition Vehicle OFF (LOCK) mode
      Transmission range switch 10P connector: disconnected
      PCM connector A (51P): disconnected
      PCM connector B (51P): disconnected
    Test circuit Corresponding circuit (indicated OFF in step 3); refer to following tables

    Test point 1 

    Connector Signal Test circuit Terminal
    Transmission range switch 10P connector A/T P Switch ATPP No. 9 (BLU)
    A/T R Switch ATPR No. 8 (WHT)
    A/T N Switch ATPN No. 2 (PUR)
    A/T D Switch ATPD No. 7 (LT GRN)
    Forward Switch (ATPFWD) ATPFWD No. 1 (YEL)
    Reverse Switch (ATPRVS) ATPRVS No. 5 (PNK)

    Test point 2 

    Connector Signal Test circuit Terminal
    PCM connector (51P) A/T P Switch ATP-P No. A37 (GRN)
    A/T R Switch ATP-R No. A16 (BLU)
    A/T N Switch ATPN No. B30 (PUR)
    A/T D Switch ATPD No. B23 (LT GRN)
    Forward Switch (ATPFWD) ATPFWD No. B29 (YEL)
    Reverse Switch (ATPRVS) ATPRVS No. B38 (PNK)
    GHH345019Courtesy of HONDA, U.S.A., INC.
    GHH345020Courtesy of HONDA, U.S.A., INC.
    GHH345021Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The wire(s) is OK. Update the PCM if it does not have the latest software . If the PCM was updated, replace the PCM .

    NO 

    Repair an open in the wire between the corresponding transmission range switch connector terminal and the PCM.

  5. Open wire check (INHI PG line)

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

    -2. Disconnect the following connector.

    Transmission range switch 10P connector

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

    Test condition Vehicle OFF (LOCK) mode
      Transmission range switch 10P connector: disconnected
    Test circuit INHI PG
    Test point 1 Transmission range switch 10P connector No. 10 (BLK)
    Test point 2 Body ground
    GHH345022Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The INHI PG wire is OK, replace the transmission range switch .

    NO 

    Repair an open in the INHI PG wire between the transmission range switch and ground (G101), or repair poor ground (G101).

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