DTC Troubleshooting: P0706
DTC P0706: Transmission Range Switch (Open)
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
P0706 Transmission Range Switch (Open)
      

1.
Problem verification:

Problem verification
?1.
Make sure the shift cable is properly adjusted.

?2.
Press the engine start/stop button to select 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
Reverse Switch
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

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 transmission range switch 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:

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.
 
A/T P Switch
A/T R Switch
A/T N Switch
A/T D Switch
A/T S Switch
Forward Switch
Reverse Switch
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

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:

Transmission range switch check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following 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
Terminal number
Wire color
Terminal name
A/T P Switch
9
BLU
ATPP
A/T R Switch
8
WHT
ATPR
A/T N Switch
2
PUR
ATPN
A/T D Switch
7
LT GRN
ATPD
A/T S Switch
6
RED
ATPS
Forward Switch(ATPFWD)
1
YEL
ATPFWD
Reverse Switch(ATPRVS)
5
PNK
ATPRVS


?4.
Press the engine start/stop button to select the ON mode.

?5.
Check the transmission range switch signal that did not indicate ON with the HDS.

Does the transmission range switch indicate ON?

     
YES
     
     
     
     
NO
     
     
     
The transmission range switch is OK. Go to step 4.
4.
Open wire check (ATPP, ATPR, ATPN, ATPD, ATPS, ATPFWD, ATPRVS line):

Open wire check in corresponding wire
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Jump the SCS line with the HDS.


?3.
Disconnect the following connectors.

?4.
Check for continuity between the transmission range switch connector terminal and the PCM terminal of the input which indicated OFF. Refer to the following table.
 
ATPP
ATPR
ATPN
ATPD
ATPS
ATPFWD
ATPRVS
PCM
A37
(ATP-P)
A16
(ATP-R)
B30
B23
B34
B29
B38
Transmission range switch
9
8
2
7
6
1
5


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.?
     
NO
     
     
     
Repair an open in the wire between the corresponding transmission range switch connector terminal and the PCM.?
5.
Open wire check (PG line):

Open wire check (PG line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
Transmission range switch 10P connector: disconnected
Test circuit
PG
Test point 1
Transmission range switch 10P connector No. 10 (BLK)
Test point 2
Body ground


Is there continuity?

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