1. The airbag system wiring harness is routed near the TCM. CAUTION: • All the airbag system wiring harnesses and connectors are colored yellow. Do not use an electric test equipment to check these circuits. • Be careful not to damage the airbag system wiring harness when performing diagnostics or servicing the TCM. 2. When measuring the voltage or resistance of individual sensor or all electrical control modules, use a tapered pin with a diameter of 0.6 mm (0.024 in) or less and touch it to the tip of terminal. Never insert the tapered pin into the terminal because it deforms inside which may lead to malfunction. CAUTION: If a pin (or similar) was inserted in TCM connector, replace the TCM connector. 3. The TCM connector is waterproof. When measuring the TCM connector terminal voltage, or the resistance between the terminals, use the ST.
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Preparation tool
InspectionDtc b1650 occupant detection system malfunction
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Occupant detection sensor malfunction, communication failure between airbag CM and occupant detection sensor, rear harness malfunction, seat harness malfunction, blown out of fuse for occupant detection systemCAUTION: ...