DTC B10C8:1F [ADVANCED KEYLESS AND START SYSTEM]


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Detection Condition

•  Cannot receive signal correctly from keyless antenna (interior, center)

Possible Causes

•  Keyless antenna (interior, center) connector or terminals malfunction
•  Keyless control module connector or terminals malfunction
•  Short to ground in wiring harness between keyless antenna (interior, center) and keyless control module
•  Short to power supply in wiring harness between keyless antenna (interior, center) and keyless control module
•  Open circuit in wiring harness between keyless antenna (interior, center) and keyless control module
•  Keyless antenna (interior, center) malfunction
•  Keyless control module malfunction

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1
INSPECT KEYLESS ANTENNA (INTERIOR, CENTER) CONNECTOR
•  Turn the ignition switch to the LOCK position.
•  Disconnect the negative battery cable.
•  Disconnect the keyless antenna (interior, center) connector.
•  Inspect the keyless antenna (interior, center) connector. (Corrosion, damage, and disconnected pins)
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the keyless antenna (interior, center) connector or terminal, then go to Step 7.
2
INSPECT KEYLESS CONTROL MODULE CONNECTOR
•  Disconnect the keyless control module connector.
•  Inspect the keyless control module connector. (Corrosion, damage, and disconnected pins)
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the keyless control module connector or terminal, then go to Step 7.
3
INSPECT KEYLESS ANTENNA (INTERIOR, CENTER) CIRCUIT FOR SHORT TO GROUND
•  Keyless antenna (interior, center) and keyless control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Keyless antenna (interior, center) terminal C
―  Keyless antenna (interior, center) terminal D
•  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 (INTERIOR, CENTER) CIRCUIT FOR SHORT TO POWER SUPPLY
•  Keyless antenna (interior, center) and keyless control module connectors are disconnected.
•  Reconnect the negative battery cable.
•  Measure the voltage at the following terminals (wiring harness-side):
―  Keyless antenna (interior, center) terminal C
―  Keyless antenna (interior, center) terminal D
•  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 (INTERIOR, CENTER) CIRCUIT FOR OPEN CIRCUIT
•  Keyless antenna (interior, center) and keyless control module connectors are disconnected.
•  Disconnect the negative battery cable.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Keyless antenna (interior, center) terminal C—Keyless control module terminal 3L
―  Keyless antenna (interior, center) terminal D—Keyless control module terminal 3Y
•  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 (INTERIOR, CENTER) MALFUNCTION
•  Reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTCs using the M-MDS.
•  Verify the DTCs using the M-MDS.
•  Is the DTC B10C8:1F displayed?
Yes
Replace the keyless antenna (interior, center), then go to the next step.
No
DTC troubleshooting completed.
7
VERIFY DTCs
•  Reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTCs using the M-MDS.
•  Verify the DTCs using the M-MDS.
•  Is the DTC B10C8:1F displayed?
Yes
Replace the keyless control module.
No
DTC troubleshooting completed.