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DTC P0706 (CVT)

DTC P0706  : Transmission Range Switch Open

NOTE: 

DTC Description Confirmed DTC Pending DTC Freeze Frame
P0706 Transmission Range Switch Open      

DTC (CVT)

  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/mode.

      A/T P Switch A/T R Switch A/T N Switch A/T D Switch A/T S Switch A/T L Switch* Forward Switch Reverse Switch
    P ON OFF OFF OFF OFF OFF OFF OFF
    R OFF ON OFF OFF OFF OFF OFF ON

    *: Without paddle shifter

      A/T P Switch A/T R Switch A/T N Switch A/T D Switch A/T S Switch A/T L Switch* Forward Switch Reverse Switch
    N OFF OFF ON OFF OFF OFF OFF OFF
    D OFF OFF OFF ON OFF OFF ON OFF
    S OFF OFF OFF OFF ON OFF ON OFF
    L* OFF OFF OFF OFF OFF ON ON OFF

    *: Without paddle shifter

    Signal Current conditions
    Values Unit
    A/T P Switch    
    A/T R Switch    
    A/T N Switch    
    A/T D Switch    
    A/T S Switch    
    A/T L Switch*    
    Forward Switch    
    Reverse Switch    

    *: Without paddle shifter

    Are the transmission range switch signals OK?

    YES 

    Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the transmission range switch and the PCM. 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.

    NO 

    The failure is duplicated. Go to step 2.

  2. Transmission range switch signal check

    -1. Compare the transmission range switch signal inputs with the HDS to the following table, in each shift lever position/mode.

      A/T P Switch A/T R Switch A/T N Switch A/T D Switch A/T S Switch A/T L Switch* Forward Switch Reverse Switch
    P ON OFF OFF OFF OFF OFF OFF OFF
    R OFF ON OFF OFF OFF OFF OFF ON
    N OFF OFF ON OFF OFF OFF OFF OFF
    D OFF OFF OFF ON OFF OFF ON OFF
    S OFF OFF OFF OFF ON OFF ON OFF
    L* OFF OFF OFF OFF OFF ON ON OFF

    *: Without paddle shifter

    Signal Current conditions
    Values Unit
    A/T P Switch    
    A/T R Switch    
    A/T N Switch    
    A/T D Switch    
    A/T S Switch    
    A/T L Switch*    
    Forward Switch    
    Reverse Switch    

    *: Without paddle shifter

    Do all transmission range switch 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 the transmission range switch connector terminal that did not indicate ON in step 2 to body ground with a jumper wire; refer to the following table.

    Signal Transmission range switch 10P connector
    Terminal number Terminal name
    A/T P Switch 4 ATP P
    A/T R Switch 3 ATP R
    A/T N Switch 8 ATP N
    A/T D Switch 2 ATP D
    A/T S Switch 7 ATP S
    A/T L Switch* 1 ATP L
    Forward Switch 6 ATP FWD
    Reverse Switch 10 ATP RVS

    *: Without paddle shifter

    GHH434777Courtesy of HONDA, U.S.A., INC.

    -4. Turn the vehicle to the ON mode.

    -5. Check the transmission range switch signal that did not indicate ON with the HDS.

    Does the transmission range switch signal indicate ON?

    YES 

    Replace the transmission range switch .

    NO 

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

  4. Open wire check (corresponding 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 B (51P)

    -4. Check for continuity between the transmission range switch connector terminal and the PCM terminal of the input which indicated OFF. Refer to the following table.

      ATP P ATP R ATP N ATP D ATP S ATP L* ATP FWD ATP RVS
    PCM B21 B22 B49 B46 B50 B47 B51 B48
    Transmission range switch 4 3 8 2 7 1 6 10

    *: Without paddle shifter

    GHH434778Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The wires are OK. Update the PCM if it does not have the latest software , or substitute a known-good PCM , then recheck. If DTC P0706 goes away and the PCM was updated, troubleshooting is complete. If DTC P0706 goes away and the PCM was substituted, replace the original PCM .

    NO 

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

  5. Open wire check (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 point 1 Transmission range switch 10P connector No. 5
    Test point 2 Body ground
    GHH434779Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The PG wire is OK. Replace the transmission range switch .

    NO 

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

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