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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clear the DTC. Disconnect the headlamp switch.
  2. Connect a DMM between the I/P dimming voltage reference circuit and the negative terminal of the battery.
  3. Ignition ON, test for 9-14 volts.
    • If less then 9 volts, test the I/P dimming voltage reference circuit for a short to ground or an open/high resistance. If the circuit/connections test normal, replace the BCM.
    • If greater than 14 volts, test the I/P dimming voltage reference circuit for a short to voltage. If the circuit/connections test normal, replace the BCM.
  4. Disconnect the DMM. Install a jumper between I/P dimming voltage reference circuit and the I/P dimming control circuit.
  5. Verify that DTC B3600 03 does not set.
    • If the DTC resets, then test for a short to ground in the I/P dimming control circuit. If the circuit/connections test normal, replace the BCM.
  6. If all circuits/connections test normal, replace the turn signal multi function switch.
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