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Showing results for tags 'c1991'.
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Hey guys. I need some serious help. About 1000kms after my last service, which included the front rotors being machined. I have been getting intermittent ABS and DSC faults which stay on until I cycle the ignition. It would be ok for a while in a straight line on a hwy (for 150kms) yet when I braked harsh or broke before a hard corner the faults would appear again. It was very frustrating as I had my young daughter in the car, so was stressing that the ABS was off. I took it to the workshop that serviced the car, they visually inspected the wheel sensors (did not remove them) and connected a scan tool- These 3 codes were there- C1288 - Pressure transducer main/ primary input circuit failure. U2501 - Missing token from engine management sys for ACC C1991 - Module calibration failure. Note- I saw these code descriptions on the scan tool, yet the mechanic only wrote the codes not the descriptions, I found these online. So I hope they are accurate. Also after mentioning that my cruise wouldn't work sometimes since all of this. They checked my brake lights. I watched as very intermittently upon pressing the brake, the lights would not light up. This is even more worrying. I've looked into a new brake switch which I confident I can fit myself. Could this switch be the cause of all my problems? Or what are the codes relating to? as the workshop have now referred me to Ford. Would rather get it sorted myself if I can. Thanks in advance for your help on this.