DTC B1D36:86 [BCM]
id0902f5070500
|
Description |
Turn switch error signal received |
|---|---|
|
Detection condition
|
• BCM receives the error signals from the start stop unit for 2 s or more with the ignition switched ON (engine off or on).
|
|
Fail-safe
|
• Perform the control with turn switch signal turned off.
|
|
Possible cause
|
• Start stop unit malfunction
• Light switch malfunction
• BCM malfunction
|
|
System wiring diagram
|
Not applicable
|
Diagnostic Procedure
|
Step |
Inspection |
Action |
|
|---|---|---|---|
|
1
|
VERIFY BCM DTCs AGAIN
• Clear the DTC for the BCM using the M-MDS.
(See CLEARING DTC [BCM].)
• Switch the ignition ON (engine off or on) and wait for 2 s or more.
• Retrieve the BCM DTCs using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same Pending DTC present?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 6.
|
||
|
2
|
DETERMINE MALFUNCTIONING LOCATION BY PERFORMING PID/DATA MONITOR INSPECTION
• Using the M-MDS, display the following PIDs for the start stop unit.
• Does the PID monitoring value switch correctly according to the light switch operation?
|
Yes
|
Go to Step 4. (Circuit between light switch and start stop unit is normal.)
|
|
No
|
Go to the next step.
|
||
|
3
|
INSPECT LIGHT SWITCH
• Inspect the light switch.
(See LIGHT SWITCH INSPECTION.)
• Is the light switch normal?
|
Yes
|
Replace the start stop unit, then go to Step 5.
|
|
No
|
Replace the light switch, then go to Step 5.
|
||
|
4
|
DETERMINE MALFUNCTIONING LOCATION BY PERFORMING PID/DATA MONITOR INSPECTION
• Using the M-MDS, display PID TURN_SW for the BCM.
• Does the PID monitoring value switch correctly according to the light switch operation?
|
Yes
|
Go to the next step. (Circuit between start stop unit and BCM is normal)
|
|
No
|
Replace the start stop unit, then go to the next step.
|
||
|
5
|
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Clear the DTC for the BCM using the M-MDS.
(See CLEARING DTC [BCM].)
• Switch the ignition ON (engine off or on) and wait for 2 s or more.
• Retrieve the BCM DTCs using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same Pending DTC present?
|
Yes
|
Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
|
|
No
|
Go to the next step.
|
||
|
6
|
VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
|
Yes
|
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [BCM].)
|
|
No
|
DTC troubleshooting completed.
|
||