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DTC P0706: Transmission Range Switch (Open)

WARNING: This page is about a different variant/trim than selected.
NOTE: This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
  1. Make sure the shift cable is adjusted properly.
  2. Turn the ignition switch to ON (II).
  3. Move the shift lever through all positions, monitor the ATPP, ATPR, ATPN, ATPD, ATPD3, ATP2-1, ATPS, ATPFWD, and ATPRVS inputs with the HDS.

    Check for an ON-input that should be OFF in the specific position base on the following tables.

    TRANSMISSION RANGE REFERENCE CHART

    Seven-position Transmission
      ATP P ATP R ATP N ATP D ATP D3 ATP 2-1 ATP FWD ATP RVS
    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
    D3 OFF OFF OFF OFF ON OFF ON OFF
    2 OFF OFF OFF OFF OFF ON ON OFF
    1 OFF OFF OFF OFF OFF ON OFF OFF
    TRANSMISSION RANGE REFERENCE CHART

    Five-position Transmission
      ATP P ATP R ATP N ATP D ATP S ATP FWD ATP RVS
    P ON OFF OFF OFF OFF OFF OFF
    R OFF ON OFF OFF OFF OFF ON
    N OFF OFF ON OFF OFF OFF OFF
    D OFF OFF OFF ON OFF ON OFF
    S OFF OFF OFF OFF ON ON OFF

    Is there a failed OFF input-signal? 

    YES  -If all inputs read OFF, go to step  11. If there is a failed input-signal, go to step 4.

    NO  -Intermittent failure, the system is OK at this time.

  4. Turn the ignition switch to LOCK (0).
  5. Disconnect the transmission range switch connector.
  6. Connect the transmission range switch connector terminal of the failed input-signal wire to body ground with a jumper wire.
  7. Turn the ignition switch to ON (II), and check that the failed OFF-input changes to ON with the HDS.

    Does the signal change to ON? 

    YES  -Replace the transmission range switch, (see TRANSMISSION RANGE SWITCH REPLACEMENT )

    NO  -Go to step 8.

  8. Turn the ignition switch to LOCK (0).
  9. Disconnect PCM connector B (49P).
  10. Check for continuity between PCM connector terminal of the failed input-signal line and body ground.
    CONTINUITY REFERENCE CHART

    Seven-position Transmission
      ATP P ATP R ATP N ATP D ATP D3 ATP 2-1 ATP FWD ATP RVS
    PCM B14 B15 B13 B22 B16 B17 B29 B23
    Range Switch 2 8 3 9 4 10 7 6
    Wire Color GRN WHT RED PNK BLU BRN YEL ORN
    REFERENCE CHART

    Five-position Transmission
      ATP P ATP R ATP N ATP D ATP S ATP FWD ATP RVS
    PCM B14 B15 B13 B22 B16 B29 B23
    Range Switch 2 8 3 9 4 7 6
    Wire Color GRN WHT RED PNK BLU YEL ORN

    Is there continuity? 

    YES  -Replace the PCM.

    NO  -Repair an open in the wire between transmission range switch and the PCM.

  11. Turn the ignition switch to LOCK (0).
  12. Disconnect the transmission range switch connector.
  13. Check for continuity between transmission range switch connector terminal No. 5 and body ground.
    Fig 1: Checking Continuity Between Transmission Range Switch Connector Terminal No. 5 And Body Ground
    G06768339Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the transmission range switch, (see TRANSMISSION RANGE SWITCH REPLACEMENT )

    NO  -Repair an open in the wire between the transmission range switch and body ground (G101), or repair poor body ground (G101).

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