P0706 (CVT (TCM))

DTC P0706  : Transmission Range Switch Open

NOTE: 

• Before you troubleshoot, 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 (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.

   Signal	Threshold						Current conditions
   	P	R	N	D	S*	L*	Values	Unit
   A/T P Switch	ON	OFF	OFF	OFF	OFF	OFF
   A/T R Switch	OFF	ON	OFF	OFF	OFF	OFF
   A/T N Switch	OFF	OFF	ON	OFF	OFF	OFF

   *: Without paddle shifter

   Signal	Threshold						Current conditions
   	P	R	N	D	S*	L*	Values	Unit
   A/T D Switch	OFF	OFF	OFF	ON	OFF	OFF
   A/T S Switch*	OFF	OFF	OFF	OFF	ON	OFF
   A/T L Switch*	OFF	OFF	OFF	OFF	OFF	ON
   Forward Switch	OFF	OFF	OFF	ON	ON	ON
   Reverse Switch (ATPRVS)	OFF	ON	OFF	OFF	OFF	OFF

   *: 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 TCM. 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.

   Signal	Threshold						Current conditions
   	P	R	N	D	S*	L*	Values	Unit
   A/T P Switch	ON	OFF	OFF	OFF	OFF	OFF
   A/T R Switch	OFF	ON	OFF	OFF	OFF	OFF
   A/T N Switch	OFF	OFF	ON	OFF	OFF	OFF
   A/T D Switch	OFF	OFF	OFF	ON	OFF	OFF
   A/T S Switch*	OFF	OFF	OFF	OFF	ON	OFF
   A/T L Switch*	OFF	OFF	OFF	OFF	OFF	ON
   Forward Switch	OFF	OFF	OFF	ON	ON	ON
   Reverse Switch (ATPRVS)	OFF	ON	OFF	OFF	OFF	OFF

   *: Without paddle shifter

   Do all transmission range switch signals remain OFF?

   YES 

   Go to step 5.

   NO 

   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 ground with a jumper wire; refer to the following table.

   Signal	Transmission range switch 10P connector (female terminals) :
   	Terminal number	Terminal name
   A/T P Switch	5	ATP-P
   A/T R Switch	4	ATP-R
   A/T N Switch	9	ATP-N

   *: Without paddle shifter

   Signal	Transmission range switch 10P connector (female terminals) :
   	Terminal number	Terminal name
   A/T D Switch	3	ATP-D
   A/T S Switch*	8	ATP-S
   A/T L Switch*	2	ATP-L
   Forward Switch	6	ATP-FWD
   Reverse Switch (ATPRVS)	10	ATP-RVS

   *: Without paddle shifter

   Courtesy 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. Disconnect the following connector.

   TCM 50P connector

   -3. Check for continuity between the transmission range switch connector terminal and the TCM 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
   TCM	No. 48	No. 47	No. 46	No. 37	No. 36	No. 35	No. 44	No. 43
   Transmission range switch	5	4	9	3	8	2	6	10

   *: Without paddle shifter

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

   Is there continuity?

   YES 

   The wires are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM , then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM .

   NO 

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

5. Open wire check (PG1 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 (female terminals) No. 1 :
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The PG1 wire is OK, replace the transmission range switch .

   NO 

   Repair an open in the PG1 wire between the transmission range switch and ground (G201), or repair poor ground (G201).