SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:12/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)]


id09021d905600

DTC

Security light flashing pattern

Coil antenna power supply circuit malfunction

M-MDS display

Keyless control module

B10E6:12

PCM

DETECTION CONDITION
•  Voltage higher than the specification (2.2—6.5 V) is detected for 0.05 s while the coil antenna power supply circuit is not active.
POSSIBLE CAUSE
•  Coil antenna connector or terminals malfunction
•  Push button start connector or terminals malfunction
•  Keyless control module connector or terminals malfunction
•  Short to power supply in wiring harness between the following terminals:
―  Push button start terminal C—Keyless control module terminal 4Q
―  Coil antenna terminal A—Keyless control module terminal 4Q
―  Coil antenna terminal B—Keyless control module terminal 4Q
•  Push button start malfunction
•  Coil antenna malfunction
•  Keyless control module malfunction


System Wiring Diagram

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Diagnostic Procedure

STEP

INSPECTION

ACTION

1
INSPECT COIL ANTENNA CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the coil antenna 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 PUSH BUTTON START CONNECTOR AND TERMINALS
•  Disconnect the push button start 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 CONTROL MODULE CONNECTOR AND TERMINALS
•  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.
4
INSPECT COIL ANTENNA POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY
•  Coil antenna, push button start and keyless control module connectors are disconnected.
•  Reconnect the negative battery cable.
•  Measure the voltage at the keyless control module terminal 4Q (wiring harness-side).
•  Is the voltage 2.2 V or more?
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 PUSH BUTTON START
•  Is there any malfunction?
Yes
Replace the push button start, then go to Step 7.
No
Go to the next step.
6
VERIFY COIL ANTENNA MALFUNCTION
•  Make sure to reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Disconnect the negative battery cable.
•  Reconnect the negative battery cable.
Note
•  The keyless control module performs on-board self-diagnostics while the negative battery cable is connected.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the same DTC present?
Yes
Replace the coil antenna, then go to the next step.
No
Go to Step 8.
7
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Disconnect the negative battery cable.
•  Reconnect the negative battery cable.
Note
•  The keyless control module performs on-board self-diagnostics while the negative battery cable is connected.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the same DTC present?
Yes
Replace the keyless control module and program the immobilizer system-related parts.
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.