U0171 Audi Auto Trouble Code
U0171 Audi the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.
Remove the air filter box assembly so you can access the transmission range switch. Turn the key to the ON position, but do not start the vehicle. Move the shifter to the neutral position. Align the alignment holes between the switch and the shift lever. Insert a 5mm drill bit into the adjustment hole to verify the proper alignment for the neutral position.
U0171 Audi Possible Solution:
Brake Switch Out of Self-Test Range Indicates that during Key On Engine Off (KOEO) Self-Test, BPP signal was high. Or during Key On Engine Running (KOER) Self -Test, the BPP signal did not cycle high and low. Open or short in (BPP) circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit (Rear Electronic Module [REM] Windstar and LS6/LS8 and Lighting Control Module (LCM) Continental and Town Car) Damaged Brake Switch Misadjusted Brake Switch Check for proper function of stoplamps. Follow correct Self-Test procedures, refer to Section 2, Quick Test.
U0171 Audi Description For All Models :
- Audi 100
- Audi 200
- Audi 4000
- Audi 50
- Audi 5000
- Audi 60
- Audi 75
- Audi 80
- Audi 90
- Audi 920
- Audi A1
- Audi A2
- Audi A3
- Audi A4
- Audi A5
- Audi A6
- Audi A7
- Audi A8
- Audi Ad
- Audi Allroad
- Audi C
- Audi Cabriolet
- Audi Concept
- Audi Coupe
- Audi Q3
- Audi Q5
- Audi Q7
- Audi Quattro
- Audi R8
- Audi Rs2
- Audi Rs3
- Audi Rs4
- Audi Rs5
- Audi Rs6
- Audi S1
- Audi S2
- Audi S3
- Audi S4
- Audi S5
- Audi S6
- Audi S8
- Audi Sq7
- Audi Tt
- Audi Ur
- Audi V8
- Audi Variant
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U0171 Audi Trouble Repair :
U0171 Audi code shows that location the body harness connector, located in and around the left hand kick panel area or inside the IP (consult a shop manual for location). Water can leak into the connector from clogged sunroof drains, A-pillar leaks, or windshield or cowling leaks. |
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