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Buddy's S4 keeps blowing fuse #34 and throwing it into limp mode. Checked engine ground wires

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Old 01-06-2009, 07:46 PM
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Default Buddy's S4 keeps blowing fuse #34 and throwing it into limp mode. Checked engine ground wires

below the coolant tank and they were bolted tight to the firewall. Any ideas as to why the fuse keeps shorting out?

Here are the codes he has when the fuse is blown:

20 Faults Found:

16518 - Oxygen (Lambda) Sensor B1 S1: No Activity
P0134 - 35-00 - -
16538 - Oxygen (Lambda) Sensor B2 S1: No Activity
P0154 - 35-00 - -
16544 - Oxygen (Lambda) Sensor B2 S2: No Activity
P0160 - 35-00 - -
17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 35-00 - -
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-00 - -
17833 - EVAP Purge Valve (N80): Short to Ground
P1425 - 35-00 - -
17938 - Camshaft Timing Adjustment: Short to Ground
P1530 - 35-00 - -
17955 - Boost Pressure Regulation Valve (N75): Short to Ground
P1547 - 35-00 - -
17697 - Boost Pressure Control Valve (N249): Short to Ground
P1289 - 35-00 - -
17530 - Oxygen (Lambda) Sensor Heating; B2 S2: Open Circuit
P1122 - 35-00 - -
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17526 - Oxygen (Lambda) Sensor Heating; B1 S2: Open Circuit
P1118 - 35-00 - -
17861 - Exhaust Gas Temp Sensor 1 (G235): Open or Short to Plus
P1453 - 35-00 - -
17865 - Exhaust Gas Temp Sensor 2 (G236): Open or Short to Plus
P1457 - 35-00 - -
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-00 - -
17523 - Oxygen (Lambda) Sensor Heating: B1 S1: Short to Ground
P1115 - 35-00 - -
17527 - Oxygen (Lambda) Sensor Heating Circuit: B2 S1: Short to Ground
P1119 - 35-00 - -
17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High
P1140 - 35-00 - -
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 35-00 - -
17947 - Clutch Pedal Switch (F36): Implausible Signal
P1539 - 35-00 - -




After replacing the fuse and clearing the codes, more than half go away and the car is no longer in limp mode. He has these codes with a working fuse:

8 Faults Found:

17530 - Oxygen (Lambda) Sensor Heating; B2 S2: Open Circuit
P1122 - 35-00 - -
17526 - Oxygen (Lambda) Sensor Heating; B1 S2: Open Circuit
P1118 - 35-10 - - - Intermittent
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-00 - -
17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 35-00 - -
17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High
P1140 - 35-00 - -
17861 - Exhaust Gas Temp Sensor 1 (G235): Open or Short to Plus
P1453 - 35-00 - -
17521 - Oxygen (Lambda) Sensor; B1 S1: Internal Resistance too High
P1113 - 35-10 - - - Intermittent
17539 - Oxygen (Lambda) Sensor; B2 S1: Internal Resistance too High
P1131 - 35-00 - -
Old 01-06-2009, 08:02 PM
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Did you check the ground on the bottom side of the passenger bumper shock support?
Old 01-06-2009, 08:28 PM
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No, I didn't. Can you check it without popping the bumper off? I'll tell him to check it tomorrow.
Old 01-06-2009, 08:43 PM
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Default send me an email, i will take a pic of it so he knows where to look, i have my car apart right now..

so i don't know if you can get to it without removing the bumper, you will have to remove the belly pan...
Old 01-06-2009, 08:50 PM
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Appreciate it, YGM.
Old 04-10-2014, 07:10 AM
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Was this issue ever solved? I have the same problem..desperate for answers!
Old 04-15-2014, 01:28 PM
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I know this place is a ghost town, but for archives sake. My problem was the passenger side cam tensioner solenoid. It was causing the short. Replace the solenoid by itself, not necessary to replace the whole cam tensioner. The solenoid is just 2 little screws, R&R in 15 minutes total. Good as new.

But you will have to find someone parting a car out, as the dealer and parts reps, will not seperate the solenoid from the cam tensioner.
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