DTC Troubleshooting: P0706
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 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.
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
    
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
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:

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
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:

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
4
ATP-P
A/T R Switch
3
ATP-R
A/T N Switch
8
ATP-N
A/T D Switch
2
ATP-D
A/T S Switch
7
ATP-S
A/T L Switch*
1
ATP-L
Forward Switch
6
ATP-FWD
Reverse Switch
10
ATP-RVS
*: Without paddle shifter


?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
     
     
     
     
NO
     
     
     
The transmission range switch is OK. Go to step 4.
4.
Open wire check (corresponding line):

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 50P connector
No.48
No.47
No.46
No.37
No.36
No.35
No.44
No.43
Transmission range switch 10P connector (female terminals):
4
3
8
2
7
1
6
10
*: Without paddle shifter


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 (PG3 line):

Open wire check (PG3 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. 5:
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the PG3 wire between the transmission range switch and ground (G201), or repair poor ground (G201).?