DTC B1D36-86: Turn Indicator Switch Signal Invalid [07/2015 - ]: Procedure

VERIFY MAIN BODY ECU DTCS AGAIN

Clear the DTC for the main body ECU using the Techstream.
Refer to DTC CHECK / CLEAR [07/2015 - ]

Body Electrical > Body Control Module > Clear DTCs
Switch the ignition ON (engine off or on) and wait for 2 s or more.
Retrieve the main body ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR [07/2015 - ]

Body Electrical > Body Control Module > Trouble Codes

Is the same DTC displayed?

Result

Result
Yes
No

Result: 2

See step 6

Result: 1

Yes

See step 2

DETERMINE MALFUNCTIONING LOCATION BY PERFORMING PID/DATA MONITOR INSPECTION

Using the Techstream, display the following PIDs for the engine stop and start ECU.

Refer to DATA LIST / ACTIVE TEST [07/2015 - ]

Turn Switch (Left)
Turn Switch (Right)

Body Electrical > Smart Start Unit > Data List

Tester Display
Turn Switch (Left)
Turn Switch (Right)

Does the PID monitoring value switch correctly according to the headlight dimmer switch operation?

Result

Result
Yes
No

Result: 1

Yes

See step 12

Result: 2

See step 3

INSPECT HEADLIGHT DIMMER SWITCH

Inspect the headlight dimmer switch
Refer to INSPECTION [07/2015 - ]

Is the headlight dimmer switch normal?

Result

Result
Yes
No

Result: 1

Yes

See step 10

Result: 2

See step 11

DETERMINE MALFUNCTIONING LOCATION BY PERFORMING PID/DATA MONITOR INSPECTION

Using the Techstream, display the following PIDs for the main body ECU.

Refer to DATA LIST / ACTIVE TEST [07/2015 - ]

Turn Switch

Body Electrical > Body Control Module > Data List

Tester Display
Turn Switch

Does the PID monitoring value switch correctly according to the headlight dimmer switch operation?

Result

Result
Yes
No

Result: 1

Yes

See step 8

Result: 2

See step 9

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

Clear the DTC for the main body ECU using the Techstream.
Refer to DTC CHECK / CLEAR [07/2015 - ]

Body Electrical > Body Control Module > Clear DTCs
Switch the ignition ON (engine off or on) and wait for 2 s or more.
Retrieve the main body ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR [07/2015 - ]

Body Electrical > Body Control Module > Trouble Codes

Is the same DTC displayed?

Result

Result
Yes
No

Result: 1

Yes

See step 7

Result: 2

See step 6

VERIFY IF OTHER DTCS DISPLAYED

Are any other DTCs displayed?

Result

Result
Yes
No

Result: 1

Yes

REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING.

Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]

Result: 2

DTC TROUBLESHOOTING COMPLETED.

REPEAT THE INSPECTION FROM STEP 1.

If the malfunction recurs, replace the main body ECU.
Refer to REMOVAL [07/2015 - ]

Go to the next step.

Result

Proceed to
NEXT

Result: 1

See step 6

GO TO THE NEXT STEP. (CIRCUIT BETWEEN ENGINE STOP AND START ECU AND MAIN BODY ECU IS NORMAL)
Result

Proceed to

NEXT

Result: 1

NEXT

See step 5

REPLACE THE ENGINE STOP AND START ECU, THEN GO TO THE NEXT STEP.

Refer to INSTALLATION [07/2015 - ]

Result

Proceed to
NEXT

Result: 1

See step 5

REPLACE THE ENGINE STOP AND START ECU, THEN GO TO STEP 5.

Refer to INSTALLATION [07/2015 - ]

Result

Proceed to
NEXT

Result: 1

See step 5

REPLACE THE HEADLIGHT DIMMER SWITCH, THEN GO TO STEP 5.

Refer to REMOVAL [07/2015 - ]

Result

Proceed to
NEXT

Result: 1

See step 5

GO TO STEP 4. (CIRCUIT BETWEEN HEADLIGHT DIMMER SWITCH AND ENGINE STOP AND START ECU IS NORMAL.)
Result

Proceed to

NEXT

Result: 1

NEXT

See step 4