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1
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INSPECT BONNET LATCH SWITCH CONNECTOR
• Turn the ignition switch to the OFF position.
• Disconnect the negative battery cable.
• Disconnect the bonnet latch switch connector.
• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
• Is there any malfunction?
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Yes
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Repair or replace the connector, then go to Step 7.
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No
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Go to the next step.
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2
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VERIFY IF MALFUNCTION CAUSE IS BONNET LATCH SWITCH POWER SUPPLY CIRCUIT OR GROUND CIRCUIT
• Verify that the bonnet latch switch connector is disconnected.
• Reconnect the negative battery cable.
• Measure the voltage at the bonnet latch switch terminal A (wiring harness-side).
• Is the voltage 0 V?
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Yes
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A malfunction in power supply circuit can be considered.
• Go to Step 5.
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No
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A malfunction in ground circuit can be considered.
• Go to the next step.
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3
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INSPECT FOR OPEN CIRCUIT IN BONNET LATCH SWITCH GROUND CIRCUIT
• Verify that the bonnet latch switch connector is disconnected.
• Disconnect the negative battery cable.
• Inspect for continuity between bonnet latch switch terminal B (wiring harness-side) 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 which has an open circuit, then go to Step 7.
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4
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INSPECT BONNET LATCH SWITCH
• Inspect the bonnet latch switch.
• Is there any malfunction?
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Yes
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Replace the bonnet latch switch, then go to Step 7.
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No
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Go to Step 7.
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5
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INSPECT BCM CONNECTOR
• Disconnect the negative battery cable.
• Disconnect the BCM connector.
• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
• Is there any malfunction?
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Yes
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Repair or replace the connector, then go to Step 7.
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No
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Go to the next step.
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6
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VERIFY IF MALFUNCTION CAUSE IS BCM OR BONNET LATCH SWITCH POWER SUPPLY CIRCUIT
• Reconnect the BCM connector.
• Reconnect the negative battery cable.
• Measure the voltage at the BCM terminal 1B (wiring harness-side).
• Is the voltage 0 V?
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Yes
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A malfunction in BCM can be considered.
• Go to the next step.
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No
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A malfunction in power supply circuit can be considered.
• Repair or replace the wiring harness which has an open circuit, then go to the next step.
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7
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear the DTC for the BCM using the M-MDS.
• Retrieve the BCM DTCs using the M-MDS.
• Is the same DTC displayed?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
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No
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Go to the next step.
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8
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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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