Checking EPC warning lamp: VW 1.4 (AKK, ANW, AUD)
Step-by-step checking EPC warning lamp for the VW 1.4: factory workshop text. What to remove, in what order, and what to check after.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 10 workshop diagrams for AKK
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
ANW AUD
Special tools, workshop equipment, test and measuring appliances and auxiliary items required
V.A.G 1526 Hand multimeter
V.A.G 1594 A Adapter set
V.A.G 1598/22 Test box
Current flow diagram
Note:
The electronic accelerator warning lamp -K132 is known also as the EPC warning lamp.
Check conditions
The fuses must be OK.
The battery voltage must be at least 11.5 V.
Checking function of warning lamp
Switch on ignition.
The EPC warning lamp must light up.
Start engine and run at idling speed.
The EPC warning lamp must
go out
when no EPC fault has been stored.
Switch off ignition.
Electronic accelerator warning lamp does not light up
Remove left plenum chamber cover.
Connect test box V.A.G 1598/22 to control unit wiring harness.
Bridge test box sockets 2 + 30 with aux. cables from V.A.G 1594.
Switch ignition on.
The fault lamp must light up
If the fault lamp does not light up:
Switch off ignition.
Remove dash panel insert and check the bulb and its voltage supply.:
=> Electrical system; Repair group 90; Dash panel insert; Removing and installing dash panel insert
Electrical system
Dash panel insert
Removing and installing dash panel insert
If no fault is found:
Check wiring for open circuit between test box socket 30 and dash panel insert using current flow diagram:
=> Current flow diagrams, Electrical fault finding and Fitting locations
If no wiring fault is detected:
Renew engine control unit:
=> Repair group 24; Engine control unit; Renewing engine control unit
4-Cyl. injection engine (2 valve, roller rocker finger), Mechanics
Engine control unit
Renewing engine control unit
Electronic accelerator fault lamp lights up continuously
Remove left plenum chamber cover.
Connect test box V.A.G 1598/22 to control unit wiring harness.
Check wiring for short to earth between test box socket 30 and dash panel insert using current flow diagram:
=> Current flow diagrams, Electrical fault finding and Fitting locations
If no wiring fault is detected:
Renew engine control unit:
=> Repair group 24; Engine control unit; Renewing engine control unit
4-Cyl. injection engine (2 valve, roller rocker finger), Mechanics
Engine control unit
Renewing engine control unit
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
Ask about my car →Other VW procedures
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- Checking catalyst
- Adapting engine control unit to throttle valve control part
- Checking Lambda probe heating before catalyst
- Removing engine · 41 torque figures
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- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.