Difference between revisions of "P11AC/004524"
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(Created page with "== P11AC/004524 - Cam Adjustment Actuator B; Cylinder 3: Implausible Signal == ==== Possible Symptoms ==== * Possible loss of power, due to AVS (Audi Valve Lift System)...") |
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| Line 12: | Line 12: | ||
* Voltage supply failure to the Cam Adjustment Actuators | * Voltage supply failure to the Cam Adjustment Actuators | ||
* Faulty Engine Control Module | * Faulty Engine Control Module | ||
| + | * Worn or damaged Camshaft/Cam Element(s) | ||
==== Possible Solutions ==== | ==== Possible Solutions ==== | ||
| Line 18: | Line 19: | ||
* Check for battery voltage at Cam Adjustment Actuators | * Check for battery voltage at Cam Adjustment Actuators | ||
* Check Engine Control Module with [Output tests] | * Check Engine Control Module with [Output tests] | ||
| + | * Repair/Replace worn or damaged Camshaft/Cam Element(s) | ||
==== Special Notes ==== | ==== Special Notes ==== | ||
Revision as of 12:52, 7 December 2020
P11AC/004524 - Cam Adjustment Actuator B; Cylinder 3: Implausible Signal
Possible Symptoms
- Possible loss of power, due to AVS (Audi Valve Lift System) default position affecting lower (1000~3100 RPM) torque curve
- All non affected actuators are switched to the Large Valve Lift position.
- Fault code entry without EPC or Check Engine lights due to no deterioration of Exhaust Emissions
Possible Causes
- Wiring and/or connections (short circuit?)
- Voltage supply failure to the Cam Adjustment Actuators
- Faulty Engine Control Module
- Worn or damaged Camshaft/Cam Element(s)
Possible Solutions
- Check wiring and connections
- Check for battery voltage at Cam Adjustment Actuators
- Check Engine Control Module with [Output tests]
- Repair/Replace worn or damaged Camshaft/Cam Element(s)
Special Notes
- See the Ross-Tech forum post: - Case Study: P11A7 00 - Audi Valve Lift System - E888 engines
- This Fault code is for the F371-Control element (6) for camshaft adjustment, Cylinder [3]
- AVS system function when coolant temperature is above 14°F (–10°C).
- Maximum of 3.0 amperes for each Cam Adjustment Actuator