Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUZUKI2005XL-7 2WD V6-2.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULETESTING AND INSPECTION
2005 Suzuki XL-7 2WD V6-2.7L
Body Control Module: Testing and Inspection
2005 Suzuki XL-7 2WD V6-2.7LSECTION Testing and Inspection
BCM-METER SIGNAL CIRCUIT INSPECTION
NOTE:
- When BCM-Meter signal circuit is malfunction, combination meter indicates the following condition at the same time. Be sure to bear this mind when diagnosing trouble.
- Charge warning indicator keeps flashing
- DRL indicator keeps flashing
- Brake indicator keeps flashing
- Windshield washer level indicator keeps flashing
- "POWER" indicator keeps flashing (H27 engine model with A/T only)
- A/T selector position indicator turns OFF (H27 engine model with A/T only)
- If charging system warning indicator, DRL indicator, Brake indicator, washer level indicator,POWER indicator (H27 engine model with A/T only) and A/T selector position indicator (H27 engine model with A/T only) display abnormal condition of BCM-METER signal circuit described in "Description", perform the following procedure.
1. Check open, short to ground and short to power circuit of BCM-METER signal circuit wire harness ("YEL") between "G55-10" and "G11-8" terminals.
If OK, go to next step.
If found abnormal condition, repair circuit.
2. Substitute a known-good BCM, and check that related indicator lights come to good conditions.
If found abnormal condition, go to next step.
3. Substitute a known-good combination meter, and recheck that the above indicators and warning operate in normal.
Reference
TCM-BCM CAN COMMUNICATION SIGNAL
NOTE:
- When BCM-Meter signal circuit is malfunction, combination meter indicates the following condition at the same time. Be sure to bear this mind when diagnosing trouble.
- Charge warning indicator keeps flashing
- DRL indicator keeps flashing
- Brake indicator keeps flashing
- Windshield washer level indicator keeps flashing
- "POWER" indicator keeps flashing (H27 engine model with A/T only)
- A/T selector position indicator turns OFF (H27 engine model with A/T only)
- If charging system warning indicator, DRL indicator, Brake indicator, washer level indicator,POWER indicator (H27 engine model with A/T only) and A/T selector position indicator (H27 engine model with A/T only) display abnormal condition of BCM-METER signal circuit described in "Description", perform the following procedure.
1. Check open, short to ground and short to power circuit of BCM-METER signal circuit wire harness ("YEL") between "G55-10" and "G11-8" terminals.
If OK, go to next step.
If found abnormal condition, repair circuit.
2. Substitute a known-good BCM, and check that related indicator lights come to good conditions.
If found abnormal condition, go to next step.
3. Substitute a known-good combination meter, and recheck that the above indicators and warning operate in normal.
Reference
TCM-BCM CAN COMMUNICATION SIGNAL
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.