DTC P0706

DTC 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	A/T S Switch	Forward Switch(ATPFWD)	Reverse Switch(ATPRVS)
   P	ON	OFF	OFF	OFF	OFF	OFF	OFF

   	A/T P Switch	A/T R Switch	A/T N Switch	A/T D Switch	A/T S Switch	Forward Switch(ATPFWD)	Reverse Switch(ATPRVS)
   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

   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
   Forward Switch(ATPFWD)
   Reverse Switch(ATPRVS)

   Do the signals match?

   YES 

   Intermittent failure, the system is OK at this time. 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. 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
   A/T S 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)
   	A/T S Switch	ATPS	No. 6 (RED)
   	Forward Switch(ATPFWD)	ATPFWD	No. 1 (YEL)
   	Reverse Switch(ATPRVS)	ATPRVS	No. 5 (PNK)

   Courtesy 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
   A/T S 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) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016)

   PCM connector B (51P) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016)

   - 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)
   	A/T S Switch	ATPS	No. 6 (RED)
   	Forward Switch(ATPFWD)	ATPFWD	No. 1 (YEL)
   	Reverse Switch(ATPRVS)	ATPRVS	No. 5 (PNK)

   Test point 2 

   Connector	Signal	Test circuit	Terminal
   PCM connector A (51P)	A/T P Switch	ATP-P	No. A37 (LT GRN)
   	A/T R Switch	ATP-R	No. A16 (WHT)
   PCM connector B (51P)	A/T N Switch	ATPN	No. B30 (PUR)
   	A/T D Switch	ATPD	No. B23 (LT GRN)
   	A/T S Switch	ATPS	No. 34 (RED)
   	Forward Switch(ATPFWD)	ATPFWD	No. B29 (YEL)
   	Reverse Switch(ATPRVS)	ATPRVS	No. B38 (PNK)

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

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

   Courtesy 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 - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .

   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

   Courtesy 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).