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11. FAULT W/O CODE DIAGNOSTIC CHART 1 Ignition On (Engine off), ABS warning light is not on Possible causes [Note] ABS warning light not on maybe caused by open warning light voltage circuit, burned bulb or damaged warning light control unit. ● blown fuse ● burned ABS warning light blub ● open voltage circuit ●damaged ABS warning light control unit.
Check ABS warning light fuse at central electrical box. OKAY No okey Replace fuse. Check central electrical box fuse socket. Not okey OKAY Replace fuse socket Remove ABS ECU connector Ignition: ON position Is warning light on? YES NO Check if ABS warning light burned? YES NO Replace Check if wire connecting ABS warning light control unit and ECU short to ground? YES Replace electrical harness Check if there is open circuit in ABS electrical harness voltage and ground circuit? Normal Not normal Replace wiring harness Check ABS warning light voltage and ground circuit connector. Not normal Normal Repair connector NO Go to INTERMITTENT FAULT DIAGNOSTIC Does fault appear again? YES Replace ABS warning light control unit 17 |