Shift Position Indicator Circuit Troubleshooting
A/T Gear Position Indicator Circuit Troubleshooting
NOTE: Check for CVT system DTCs. If any DTCs are present, troubleshoot those first.

CVT System
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
       

1.
Shift cable adjustment check:

Shift cable adjustment check
?1.
Make sure the shift cable is properly adjusted.

Is the shift cable adjusted properly?

     
YES
     
     
     
The shift cable adjustment is OK. Go to step 2.
     
NO
     
     
     
Adjust the shift cable, then recheck.?
2.
Gauge control module lost of communication DTC check:

Gauge control module lost of communication DTC check
?1.
Check for DTCs in BODY ELECTRICAL with the HDS.
DTC Description
DTC
U0100 Gauge control module lost communication with PCM
  

Is DTC U0100 indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
Shift position indicator drive circuit check:

Shift position indicator drive circuit check
?1.
Check the shift position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function.

Does the shift position indicator blink while checking?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Failure of shift position indicator drive circuit in the gauge control module, replace the gauge control module.?
4.
Transmission range switch signal check 1:

Transmission range switch signal check 1
?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/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
    

Do the transmission range switch signals match?

     
YES
     
     
     
The transmission range switch signal is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom goes away, replace the original PCM.?
     
NO
     
     
     
Go to step 5.
5.
Transmission range switch signal check 2:

Transmission range switch signal check 2
?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
    

Do all signals remain OFF?

     
YES
     
     
     
Go to step 8.
     
NO
     
     
     
Record the abnormal circuit, then go to step 6.
6.
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 10P connector terminal that incorrectly indicates ON in step 5 to body ground with a jumper wire; refer to the following table.
Signal
Transmission range switch 10P connector
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
A/T D Switch
3
ATP-D
A/T S Switch
8
ATP-S
A/T L Switch
2
ATP-L


?4.
Turn the vehicle to the ON mode.

?5.
Check the parameter(s) below that did not indicate ON with the HDS.
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
    

Does the transmission range switch indicate ON?

     
YES
     
     
     
     
NO
     
     
     
The transmission range switch is OK. Go to step 7.
7.
Open wire check (corresponding line):

Open wire check (corresponding line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Jump the SCS line with the HDS, and wait more than 1 minute.


?3.
Disconnect the following connector.
PCM connector C (51P)

?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.
 
ATP-P
ATP-R
ATP-N
ATP-D
ATP-S
ATP-L
PCM
C34
C27
C24
C25
C43
C44
Transmission range switch
5
4
9
3
8
2


Is there continuity?

     
YES
     
     
     
The transmission range switch signal is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom goes away, replace the original PCM.?
     
NO
     
     
     
Repair an open in the wire between the corresponding transmission range switch connector terminal and the PCM.?
8.
Open wire check (PG line):

Open wire check (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 point 1
Transmission range switch 10P connector No. 1
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).?