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1
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VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
• Clear front body control module (FBCM) DTCs using the M-MDS.
• Switch the ignition ON (engine off or on).
• Operate the light switch in TNS position.
• Perform the front body control module (FBCM) DTC inspection using the M-MDS.
• Is DTC C1126:13 displayed?
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Yes
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Go to the next step.
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No
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Go to Step 10.
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2
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VERIFY ILLUMINATION CONDITION OF PARKING LIGHTS
• Operate the light switch to the TNS position.
• Are the parking lights illuminated?
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Yes
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Go to Step 4.
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No
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Go to the next step.
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3
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INSPECT FRONT COMBINATION LIGHT (LH/RH) CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the front combination light (LH/RH) connector.
• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
• Is the connector normal?
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Yes
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Go to Step 5.
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No
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Repair or replace the connector, then go to Step 9.
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4
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VERIFY THAT LED BULB IS INSTALLTED TO PARKING LIGHT
• Remove the parking light bulb.
• Is the LED bulb installed?
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Yes
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The circuit is normal, complete the DTC troubleshooting.
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Note
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• Verify the reason why DTC C1126:13 is detected referring to the servicing pointers.
• If necessary, explain to the customer that although a DTC was displayed, it does not indicate a malfunction.
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No
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Go to the next step.
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5
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INSPECT PARKING LIGHT BULB (LH/RH)
• Inspect the parking light bulb (LH/RH).
• Is the parking light bulb (LH/RH) 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 parking light bulb (LH/RH), then go to Step 9.
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6
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INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
• Disconnect the front body control module (FBCM) connector.
• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
• Is the connector normal?
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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 connector, then go to Step 9.
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7
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INSPECT PARKING LIGHT (LH/RH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
• Verify that the front combination light (LH/RH) and front body control module (FBCM) connectors are disconnected.
• Connect the negative battery cable.
• Switch the ignition ON (engine off or on).
• Measure the voltage at front body control module (FBCM) 1J terminal (vehicle wiring harness side).
• Is the voltage 0 V?
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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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8
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INSPECT PARKING LIGHT (LH/RH) CONTROL CIRCUIT FOR OPEN CIRCUIT
• Verify that the front combination light (LH/RH) and front body control module (FBCM) connectors are disconnected.
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Inspect the wiring harness between the following terminals (vehicle wiring harness side) for continuity.
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― Front combination light (LH/RH) terminal C and front body control module (FBCM) terminal 1J (without headlight leveling system)
― Front combination light (LH/RH) terminal D and front body control module (FBCM) terminal 1J (with headlight leveling system)
• 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 the next step.
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9
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VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Reconnect all the disconnected connectors.
• Reconnect the disconnected negative battery cable.
• Clear front body control module (FBCM) DTCs using the M-MDS.
• Switch the ignition ON (engine off or on).
• Operate the light switch in TNS position.
• Perform the front body control module (FBCM) DTC inspection using the M-MDS.
• Is DTC C1126:13 displayed?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the front body control module (FBCM), then 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 IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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