LEMON Manuals: Even more car manuals for everyone
Home >> Acura >> 2018 >> RLX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (4 Of 6) (Except Hybrid) >> DTC Troubleshooting >> DTC P0705

DTC P0705

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

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
P0705 Transmission Range Switch (Multiple Shift - Position Input)      

DTC (A/T)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. 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. Compare the transmission range switch signal inputs with the HDS to table in step 1-2, 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)    

    Are any signals ON in all shift lever positions?

    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 (incorrectly indicated 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)
    GHH345016Courtesy of HONDA, U.S.A., INC.

    -4. Turn the vehicle to the ON mode.

    -5. Check the parameter(s) below 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)    

    Do multiple signals indicate ON?

    YES 

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

    NO 

    Replace the transmission range switch .

  4. A/T gear position indicator check

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

    -2. Remove the A/T gear position indicator .

    -3. Turn the vehicle to the ON mode.

    -4. Check the parameter(s) below that remained ON with the HDS.

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

    Do multiple signals indicate ON?

    YES 

    The A/T gear position indicator is OK. Repair a short in the wires between the corresponding transmission range switch connector terminal, the A/T gear position indicator, and the PCM. Refer to the following table.

      ATP-P/
    ATPP    		 ATP-R/
    ATPR    		 ATPN ATPD ATPFWD ATPRVS
    PCM A37 A16 B30 B23 B29 B38
    Transmission range switch 9 8 2 7 1 5

    NO 

    Replace the A/T gear position indicator .

  5. Transmission range switch check

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

    -2. Disconnect the following connector.

    Transmission range switch 10P connector

    -3. Turn the vehicle to the ON mode.

    -4. Check the parameter(s) below that remained 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)    

    Do any signals remain ON?

    YES 

    The transmission range switch is OK. Go to step 6.

    NO 

    Replace the transmission range switch .

  6. A/T gear position indicator check

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

    -2. Remove the A/T gear position indicator .

    -3. Turn the vehicle to the ON mode.

    -4. Check the parameter(s) below that remained 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)    

    Do any signals remain ON?

    YES 

    The A/T gear position indicator is OK. Got to step 7.

    NO 

    Replace the A/T gear position indicator .

  7. Shorted 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 these test points and body ground individually.

    Test condition Vehicle OFF (LOCK) mode
      Transmission range switch 10P connector: disconnected
      PCM connector A (51P): disconnected
      PCM connector B (51P): disconnected
      A/T gear position indicator 12P connector: disconnected
    Test circuit Corresponding circuit (indicated ON in step 5); refer to following table
    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)
    GHH345017Courtesy of HONDA, U.S.A., INC.

    Does the circuit that indicated ON have continuity to body ground?

    YES 

    Repair a short to ground in the wire between the corresponding transmission range switch connector terminal, the A/T gear position indicator, and the PCM.

    NO 

    The wires are OK. Update the PCM if it does not have the latest software . If the PCM was updated, replace the PCM .

scientia non olet · About LEMON Manuals