SECURITY LIGHT: 11, DTC: B10D9:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
id0902e5353000
DTC |
Security light flashing pattern |
11 |
No detected communication with coil antenna |
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---|---|---|---|---|
M-MDS display |
Instrument cluster |
B10D9:87 |
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PCM |
P1260:00 |
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POSSIBLE CAUSE
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• METER IG 15 A fuse malfunction
• The coil antenna connector is pulled out
• Coil antenna malfunction
• Instrument cluster malfunction
• Related wiring harnesses malfunction
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System wiring diagram
am6zzw00001760
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Diagnostic Procedure
Step |
Inspection |
Action |
|
---|---|---|---|
1
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VERIFY COIL ANTENNA CORRECTLY INSTALLED
• Verify the installation condition of the coil antenna.
• Is the coil antenna correctly installed? (Is the connector pulled out?)
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Yes
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Go to the next step.
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No
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Install the coil antenna correctly, then go to Step 9.
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2
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FUSE INSPECTION
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Remove the METER IG 15 A fuse.
• Is the fuse normal?
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Yes
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Go to the next step.
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No
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Replace the fuse, then go to Step 9.
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3
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INSPECT COIL ANTENNA POWER SUPPLY
• Disconnect the coil antenna connector.
• Connect the negative battery cable.
• Switch the ignition to ON.
• Measure the voltage at coil antenna terminal B.
|
Yes
|
Go to the next step.
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No
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Repair or replace the wiring harness, then go to Step 9.
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4
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INSPECT WIRING HARNESS BETWEEN COIL ANTENNA AND BODY GROUND
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Measure the continuity of the wiring harness between coil antenna terminal C and body ground.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness, then go to Step 9.
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5
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INSPECT COMMUNICATION CIRCUIT (INPUT) FOR CONTINUITY
• Disconnect the instrument cluster connector.
• Measure the continuity of the wiring harness between coil antenna terminal C and instrument cluster terminal 2G.
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness between coil antenna and the instrument cluster, then go to Step 9.
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6
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INSPECT COMMUNICATION CIRCUIT (OUTPUT) FOR CONTINUITY
• Measure the continuity of the wiring harness between coil antenna terminal D and instrument cluster terminal 2E.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness between coil antenna and the instrument cluster, then go to Step 9.
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7
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INSPECT COIL ANTENNA INPUT SIGNAL CIRCUIT
• Connect the coil antenna connector.
• Connect the negative battery cable.
• Switch the ignition to ON.
• Measure the voltage at coil antenna terminal C.
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Yes
|
Go to the next step.
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No
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Replacing the coil antenna.
Go to Step 9.
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8
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INSPECT COMMUNICATION CIRCUIT (OUTPUT) FOR CONTINUITY
• Measure the continuity of the wiring harness between coil antenna terminal F and body ground.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Replacing the coil antenna.
Go to the next step.
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9
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VERIFY AFTER REPAIR
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Reconnect the disconnected connectors.
• Connect the negative battery cable.
• Clear the DTC.
• Verify if any DTCs are displayed.
• Are DTCs output again?
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Yes
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Replace the instrument cluster and program the immobilizer system-related parts.
Go to the next step.
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No
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Go to the next step.
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10
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Verify if other DTCs are displayed.
• Are any other DTCs output?
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Yes
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Perform the corresponding DTC inspection.
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No
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DTC troubleshooting completed.
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