Quote:
Originally Posted by 73ess
Can someone tell me exactly which relay and fuse control the hydraulic pump on a 1990 C4? The brake and "diff" warning lights are staying on while driving and my brake pedal is REALLY hard to press. I'm hoping it's just a bad relay or fuse.
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I'm having this exact problem. i've replaced the DME and Fuel pump relay, but I'm getting the diff & brake warning lights staying on. @73ess - did you ever figure yours out? Thanks!