DTC C1137:12 [BCM]

id0902f5415400


ATX/CVT

DESCRIPTION

TR switch circuit malfunction
DETECTION CONDITION
•  Short to power supply in the TR switch circuit with the selector lever in P or N range.
POSSIBLE CAUSE
•  TR switch connector or terminals malfunction
•  BCM connector or terminals malfunction
•  Short to power supply in wiring harness between the following terminals:
ATX
―  TR switch terminal D—BCM terminal 1Q
CVT
―  TR switch terminal E—BCM terminal 1Q
•  TR switch malfunction
•  BCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM BCM DTC
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the selector lever in P or N range.
•  Is the same DTC present?
Yes
Go to the next step.
No
Go to Step 7.
2
INSPECT TR SWITCH CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the TR switch connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 6.
No
Go to the next step.
3
INSPECT BCM CONNECTOR AND TERMINALS
•  Disconnect the BCM connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 6.
No
Go to the next step.
4
INSPECT TR SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
•  TR switch and BCM connectors are disconnected.
•  Reconnect the negative battery cable.
•  Switch the ignition to ON.
•  Measure the voltage at the following terminal (wiring harness-side):
ATX
―  TR switch terminal D
CVT
―  TR switch terminal E
•  Is there any voltage?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 6.
No
Go to the next step.
5
INSPECT TR SWITCH
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Reconnect the TR switch connector.
•  Reconnect the negative battery cable.
•  Inspect the TR switch.
•  Is there any malfunction?
Yes
Replace the TR switch, then go to the next step.
(See TRANSAXLE RANGE (TR) SWITCH REMOVAL/INSTALLATION [FS5A-EL].)
(See TRANSAXLE RANGE (TR) SWITCH REMOVAL/INSTALLATION [FN4A-EL].)
No
Go to the next step.
6
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the selector lever in P or N range.
•  Is the same DTC present?
Yes
Replace the BCM, then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [L.H.D.].)
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [R.H.D.].)
No
Go to the next step.
7
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
No
DTC troubleshooting completed.


MTX

DESCRIPTION

Back-up light switch circuit malfunction
DETECTION CONDITION
•  Short to power supply in the back-up light switch circuit with the shift lever in P or N range.
POSSIBLE CAUSE
•  Back-up light switch connector or terminals malfunction
•  BCM connector or terminals malfunction
•  Short to power supply in wiring harness between the following terminals:
―  Back-up light switch terminal B—BCM terminal 1Q
•  Back-up light switch malfunction
•  BCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM BCM DTC
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the shift lever in P or N range.
•  Is the same DTC present?
Yes
Go to the next step.
No
Go to Step 7.
2
INSPECT BACK-UP LIGHT SWITCH CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the back-up light switch connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 6.
No
Go to the next step.
3
INSPECT BCM CONNECTOR AND TERMINALS
•  Disconnect the BCM connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 6.
No
Go to the next step.
4
INSPECT BACK-UP LIGHT SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
•  Back-up light switch and BCM connectors are disconnected.
•  Reconnect the negative battery cable.
•  Switch the ignition to ON.
•  Measure the voltage at the following terminal (wiring harness-side):
―  Back-up light switch terminal B
•  Is there any voltage?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 6.
No
Go to the next step.
5
INSPECT BACK-UP LIGHT SWITCH
•  Switch the ignition to off.
•  Inspect the back-up light switch.
•  Is there any malfunction?
Yes
Replace the back-up light switch, then go to the next step.
(See BACK-UP LIGHT SWITCH REMOVAL/INSTALLATION [F35M-R].)
(See BACK-UP LIGHT SWITCH REMOVAL/INSTALLATION [J65M-R].)
(See BACK-UP LIGHT SWITCH REMOVAL/INSTALLATION [A26M-R].)
(See BACK-UP LIGHT SWITCH REMOVAL/INSTALLATION [G66M-R].)
No
Go to the next step.
6
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the shift lever in P or N range.
•  Is the same DTC present?
Yes
Replace the BCM, then go to the next step.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [L.H.D.].)
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [R.H.D.].)
No
Go to the next step.
7
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
No
DTC troubleshooting completed.