DTC B1210:1F [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]


id09021c388600

DESCRIPTION

Keyless antenna (exterior, RF) circuit malfunction

DETECTION CONDITION
•  Cannot receive the signal correctly from the keyless antenna (exterior, RF).
POSSIBLE CAUSE
•  Front outer handle (RH) connector or terminals malfunction
•  Keyless control module connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  Front outer handle (RH) terminal B—Keyless control module terminal 3O
―  Front outer handle (RH) terminal E—Keyless control module terminal 3AD
•  Short to power supply in wiring harness between the following terminals:
―  Front outer handle (RH) terminal B—Keyless control module terminal 3O
―  Front outer handle (RH) terminal E—Keyless control module terminal 3AD
•  Open circuit in wiring harness between the following terminals:
―  Front outer handle (RH) terminal B—Keyless control module terminal 3O
―  Front outer handle (RH) terminal E—Keyless control module terminal 3AD
•  Keyless antenna (exterior, RF) malfunction
•  Keyless control module malfunction

Diagnostic Procedure

Step

Inspection

Action

1
INSPECT FRONT OUTER HANDLE (RH) CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the front outer handle (RH) 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 7.
No
Go to the next step.
2
INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION
•  Disconnect the keyless control module 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 7.
No
Go to the next step.
3
INSPECT KEYLESS ANTENNA (EXTERIOR, RF) CIRCUIT FOR SHORT TO GROUND
•  Front outer handle (RH) and keyless control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Front outer handle (RH) terminal B
―  Front outer handle (RH) terminal E
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to ground, then go to Step 7.
No
Go to the next step.
4
INSPECT KEYLESS ANTENNA (EXTERIOR, RF) CIRCUIT FOR SHORT TO POWER SUPPLY
•  Front outer handle (RH) and keyless control module connectors are disconnected.
•  Reconnect the negative battery cable.
•  Switch the ignition to ON.
•  Measure the voltage at the following terminals (wiring harness-side):
―  Front outer handle (RH) terminal B
―  Front outer handle (RH) terminal E
•  Is there any voltage?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
No
Go to the next step.
5
INSPECT KEYLESS ANTENNA (EXTERIOR, RF) CIRCUIT FOR OPEN CIRCUIT
•  Front outer handle (RH) and keyless control module connectors are disconnected.
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Front outer handle (RH) terminal B—Keyless control module terminal 3O
―  Front outer handle (RH) terminal E—Keyless control module terminal 3AD
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
6
VERIFY KEYLESS ANTENNA (EXTERIOR, RF) MALFUNCTION
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Open any door or trunk/liftgate, then close all doors or the trunk/liftgate with the ignition switched off.
•  Perform the advanced keyless entry and push button start system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the keyless antenna (exterior, RF), then go to the next step.
No
Go to Step 8.
7
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Open any door or trunk/liftgate, then close all doors or the trunk/liftgate with the ignition switched off.
•  Perform the advanced keyless entry and push button start system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the keyless control module, then go to the next step.
No
Go to the next step.
8
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.