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1
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VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
• Clear the DTC for the front body control module (FBCM) using the M-MDS.
• Operate the turn switch to the RH position.
• Retrieve the front body control module (FBCM) DTCs using the M-MDS.
• Is the same Pending DTC present?
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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 17.
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2
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DETERMINE MALFUNCTIONING LIGHT
• Operate the turn switch to the RH position.
• Are there any lights among the following which do not flash or continue to be illuminated?
-
― Front turn light (RH)
― Rear turn light (RH)
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Yes
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All lights do not flash or continue to be illuminated:
• Go to the next step.
Front turn light (RH) do not flash or continue to be illuminated:
• Go to Step 4.
Rear turn light (RH) do not flash or continue to be illuminated:
• Go to Step 10.
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No
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Go to Step 16.
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3
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INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
• Switch the ignition off.
• Disconnect the negative battery terminal.
• 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 Step 16.
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No
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Repair or replace the connector, then go to Step 16.
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4
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INSPECT FRONT TURN LIGHT BULB (RH)
• Inspect the front turn light bulb (RH).
• Is the front turn light bulb (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 front turn light bulb (RH), then go to Step 16.
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5
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INSPECT FRONT COMBINATION LIGHT (RH) CONNECTOR CONDITION
• Switch the ignition off.
• Disconnect the negative battery terminal.
• Disconnect the front combination light (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 the next step.
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No
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Repair or replace the connector, then go to Step 16.
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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 16.
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7
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INSPECT FOR SHORT TO GROUND IN FRONT TURN LIGHT (RH) CONTROL CIRCUIT
• Verify that the front combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Inspect for continuity between front body control module (FBCM) terminal 1G (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Refer to the wiring diagram and verify whether or not there is a common connector between front combination light (RH) terminal E and front body control module (FBCM) terminal 1G.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has a short to ground.
Go to Step 16.
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No
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Go to the next step.
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8
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INSPECT FOR SHORT TO POWER SUPPLY IN FRONT TURN LIGHT (RH) CONTROL CIRCUIT
• Verify that the front combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Reconnect the negative battery terminal.
• Switch the ignition ON (engine off or on).
• Measure the voltage at the front body control module (FBCM) terminal 1G (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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Refer to the wiring diagram and verify whether or not there is a common connector between front combination light (RH) terminal E and front body control module (FBCM) terminal 1G.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has a short to power supply.
Go to Step 16.
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9
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INSPECT FOR OPEN CIRCUIT IN FRONT TURN LIGHT (RH) CONTROL CIRCUIT
• Switch the ignition off.
• Disconnect the negative battery terminal.
• Verify that the front combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Inspect for continuity between front combination light (RH) terminal E (wiring harness-side) and front body control module (FBCM) terminal 1G (wiring harness-side).
• Is there continuity?
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Yes
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Go to Step 16.
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No
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Refer to the wiring diagram and verify whether or not there is a common connector between front combination light (RH) terminal E and front body control module (FBCM) terminal 1G.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has an open circuit.
Go to Step 16.
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10
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INSPECT REAR TURN LIGHT BULB (RH)
• Inspect the rear turn light bulb (RH).
• Is the rear turn light bulb (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 rear turn light bulb (RH), then go to Step 16.
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11
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INSPECT REAR COMBINATION LIGHT (RH) CONNECTOR CONDITION
• Switch the ignition off.
• Disconnect the negative battery terminal.
• Disconnect the rear combination light (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 the next step.
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No
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Repair or replace the connector, then go to Step 16.
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12
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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 16.
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13
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INSPECT FOR SHORT TO GROUND IN REAR TURN LIGHT (RH) CONTROL CIRCUIT
• Verify that the rear combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Inspect for continuity between front body control module (FBCM) terminal 1E (wiring harness-side) and body ground.
• Is there continuity?
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Yes
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Refer to the wiring diagram and verify whether or not there is a common connector between rear combination light (RH) terminal A and front body control module (FBCM) terminal 1E.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has a short to ground.
Go to Step 16.
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No
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Go to the next step.
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14
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INSPECT FOR SHORT TO POWER SUPPLY IN REAR TURN LIGHT (RH) CONTROL CIRCUIT
• Verify that the rear combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Reconnect the negative battery terminal.
• Switch the ignition ON (engine off or on).
• Measure the voltage at the front body control module (FBCM) terminal 1E (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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Refer to the wiring diagram and verify whether or not there is a common connector between rear combination light (RH) terminal A and front body control module (FBCM) terminal 1E.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has a short to power supply.
Go to Step 16.
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15
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INSPECT FOR OPEN CIRCUIT IN REAR TURN LIGHT (RH) CONTROL CIRCUIT
• Switch the ignition off.
• Disconnect the negative battery terminal.
• Verify that the rear combination light (RH) and front body control module (FBCM) connectors are disconnected.
• Inspect for continuity between rear combination light (RH) terminal A (wiring harness-side) and front body control module (FBCM) terminal 1E (wiring harness-side).
• 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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Refer to the wiring diagram and verify whether or not there is a common connector between rear combination light (RH) terminal A and front body control module (FBCM) terminal 1E.
If there is a common connector:
• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
• Repair or replace the malfunctioning part.
If there is no common connector:
• Repair or replace the wiring harness which has an open circuit.
Go to the next step.
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16
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VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Always reconnect all disconnected connectors.
• Reconnect the negative battery terminal.
• Clear the DTC for the front body control module (FBCM) using the M-MDS.
• Operate the turn switch to the RH position.
• Retrieve the front body control module (FBCM) DTCs using the M-MDS.
• Is the same Pending DTC present?
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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).
Go to the next step.
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No
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Go to the next step.
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17
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair or replace 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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