About six months ago my left rear wheel speed sensor went bad and the speedometer worked intermittently. I continued to drive without repairing it until it stopped working completely (I have GPS speedometer too) and eventually the ABS light came on and that computer is messed up. I know this all now because my dealership diagnosed the codes. Today I replaced the left rear wheel speed sensor and expected the speedometer to start working. No luck. Will it not work while the ABS computer is still fouled up? I plan on sending it for a rebuild but I thought the speedometer would work anyhow. Anyone know?