LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2008 >> XL7 Base, FWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Diagnostic Information and Procedures >> DTC B1405 >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the battery current sensor.
  2. Ignition OFF, test for less than 1 ohm between the low reference circuit terminal B and ground.
    • If the greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  3. Ignition ON, test for 4.8-5.2 volts between the battery current sensor supply voltage circuit terminal A and ground.
    • If less than the specified range, test the battery current sensor supply voltage circuit for a short to ground or an open/high resistance. If the circuit test normal, replace the BCM.
    • If greater than specified range, test the battery current sensor supply voltage circuit for a short to voltage. If the circuit test normal, replace the BCM.
  4. Ignition ON, test for 4.8-5.2 volts between the battery current sensor signal circuit terminal C and ground.
    • If less than the specified range, test the battery current sensor signal circuit for a short to ground or an open/high resistance. If the circuit test normal, replace the BCM.
    • If greater than specified range, test the battery current sensor signal circuit for a short to voltage. If the circuit test normal, replace the BCM.
  5. If all circuits test normal, test or replace the battery current sensor.
scientia non olet · About LEMON Manuals