INFINITI Q45 TCS, SLIP AND ABS LIGHTS ARE ON

Question

When I drive my car the slip, TCS & antilock lights come on & stay on. If I turn the car off & start it up again the lights go off but they come on again when I start driving, can you tell me what is causing this.

Solution

There are many things that can make the TCS, Slip and ABS lights to come ON and OFF, but the most common problem is bad TCS relays (1990-1996 Q45 only), the relays (2) are located on the right side of the battery base, the color is blue and measure about 2x2x3 inches. The corrosion of the battery gets to the relays connectors causing poor contact. Usually replacing both relays and cleaning the connectors takes care of the problem, but sometimes just cleaning the connectors will do.

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