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7 Posts
Vehicle: 2006 Saab 9-3 SportCombi Aero
Issue: Vehicle will engage systems when the key is inserted and turned, though if the issue is present; the gas gauge "bumps" but will not display the actual amount of gas in the vehicle, the SID will indicate a Traction Control Failure & Stability Control Failure (I feel it should be noted that no ABS light is indicated in this) and the vehicle will not turn-over, let alone start, it is also noted that the fuel pump does not seem to engage. We have bypassed the relay in the UEC with a positive result for cranking, though the vehicle still will not start.
Background: The current issue kind of cropped up while we were troubleshooting headlamp failure. Both headlamps failed at the same time, one of the ballasts had been replaced, so after verifying both the bulbs and ignitors on my xenon headlights were working, we moved on to swapped the UEC, the ABS control unit, and running a Tech-II with Saab Software - turned out the ballasts both went out and once replaced, the headlamp failure was resolved. Though we are left with the crippling Traction/Stability Control Failure. The tie-rods were replaced, though no issue occurred until sometime after. Communication with the ECU seems to be clean, so we are pretty confident the computer is talking to everything as needed. Faults u2105 and u2106 came back on the Tech-II, being missing TCM and ECM on BUS.
Suggested Resolves: Find the wire that is the culprit and fix it.
Continuing my search for specific information will be happening, so I will keep adding as I find steps I am taking to resolve this issue. What I am hoping for is some guidance on which specific wiring harnesses I am looking to test, and how. Taking a quick look at the various harnesses in that driver-side area of the engine-bay has not yielded results, and all tested grounds appeared to be as they needed to be. I am pretty confident it is a wire, just which one where?
Issue: Vehicle will engage systems when the key is inserted and turned, though if the issue is present; the gas gauge "bumps" but will not display the actual amount of gas in the vehicle, the SID will indicate a Traction Control Failure & Stability Control Failure (I feel it should be noted that no ABS light is indicated in this) and the vehicle will not turn-over, let alone start, it is also noted that the fuel pump does not seem to engage. We have bypassed the relay in the UEC with a positive result for cranking, though the vehicle still will not start.
Background: The current issue kind of cropped up while we were troubleshooting headlamp failure. Both headlamps failed at the same time, one of the ballasts had been replaced, so after verifying both the bulbs and ignitors on my xenon headlights were working, we moved on to swapped the UEC, the ABS control unit, and running a Tech-II with Saab Software - turned out the ballasts both went out and once replaced, the headlamp failure was resolved. Though we are left with the crippling Traction/Stability Control Failure. The tie-rods were replaced, though no issue occurred until sometime after. Communication with the ECU seems to be clean, so we are pretty confident the computer is talking to everything as needed. Faults u2105 and u2106 came back on the Tech-II, being missing TCM and ECM on BUS.
Suggested Resolves: Find the wire that is the culprit and fix it.
Continuing my search for specific information will be happening, so I will keep adding as I find steps I am taking to resolve this issue. What I am hoping for is some guidance on which specific wiring harnesses I am looking to test, and how. Taking a quick look at the various harnesses in that driver-side area of the engine-bay has not yielded results, and all tested grounds appeared to be as they needed to be. I am pretty confident it is a wire, just which one where?