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DTC P0705: Short in Transmission Range Switch Circuit (Multiple Shift-Position Input)

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review GENERAL TROUBLESHOOTING INFORMATION  .
  • This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
  1. Turn the ignition switch to ON (II).
  2. Compare the ATPP, ATPR, ATPN, ATPD, ATPL, ATPFWD, and ATPRVS inputs with the HDS to the following table, in each shift lever position.
    ATPP, ATPR, ATPN, ATPD, ATPL, ATPFWD AND ATPRVS INPUTS REFERENCE CHART

      ATP P ATP R ATP N ATP D ATP L ATP FWD ATP RVS
    P X X X X X X
    R X X X X X
    N X X X X X X
    D X X X X X
    L X X X X X
    ◦: ON X: OFF

    Do the transmission range switch signals match? 

    YES  -Intermittent failure, the system is OK at this time.

    NO  -Go to step 3.

  3. Compare the ATPP, ATPR, ATPN, ATPD, ATPL, ATPFWD, and ATPRVS inputs with the HDS to the table-in step  2, in each shift lever position.

    Are any transmission range switch signals ON in all shift lever positions? 

    YES  -Go to step  9.

    NO  -Record the input that did not indicate ON, then go to step 4.

  4. Turn the ignition switch to LOCK (0).
  5. Disconnect the transmission range switch connector.
  6. Connect the transmission range switch connector terminal which incorrectly indicates ON in step  3 to body ground with a jumper wire.
  7. Turn the ignition switch to ON (II).
  8. Compare the ATPP, ATPR, ATPN, ATPD, ATPL, ATPFWD, and ATPRVS inputs with the HDS to the table in step  2.

    Do multiple transmission range switch signals indicate ON? 

    YES  -Repair a short in the wires between the transmission range switch and the PCM, refer to the following table.

    NO  -Replace the transmission range switch (see TRANSMISSION RANGE SWITCH REPLACEMENT  ).

    TRANSMISSION RANGE SWITCH REFERENCE CHART

      ATP P ATP R ATP N ATP D ATP L ATP FWD ATP RVS
    PCM A16 C25 C26 C17 C46 C18 C19
    Transmission range switch 9 8 2 7 6 1 5
  9. Turn the ignition switch to LOCK (0).
  10. Disconnect the transmission range switch connector.
  11. Turn the ignition switch to ON (II).
  12. Check the transmission range switch signal that remained ON with the HDS.

    Does the transmission range switch signal remain ON? 

    YES  -Go to step 13.

    NO  -Replace the transmission range switch (see TRANSMISSION RANGE SWITCH REPLACEMENT  ).

  13. Turn the ignition switch to LOCK (0).
  14. Check for continuity to body ground in the circuit that remained ON in step  2.

    Does the circuit that indicated ON have continuity to ground? 

    YES  -Repair a short to body ground in the wire between the corresponding transmission range switch connector terminal and the PCM.

    NO  -Update the PCM if it does not have the latest software (see PCM UPDATE ). If the PCM was updated, replace the PCM (see PCM REPLACEMENT ).