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Checking output wire Audi TT 8N facelift

Fuel Supply System ~658 words

Checking output wire

  1. Connect VAG1527B voltage tester as follows
Electrical harness connector terminalMeasure to
2Battery +
  1. Initiate output Diagnostic Test Mode. Refer to «Checking function»(ref-276268-S34223481232008021400000) .
  1. LED must blink.

If LED does not blink

  1. Click <-- button to end function "03 Output check diagnosis"
  2. Select "06 End sequence"
  3. Switch ignition off.
  1. Connect VAG1598/31 test box to connector of wiring harness. Engine Control Module (ECM) must not be attached. Ground (GND) clip (arrow) at test box must be clipped to battery negative terminal (arrow).

Refer to

  1. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276270-S08391981802008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMU
  2. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276271-S29225238592008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): ATC
  3. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276272-S33271097972008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AWP
  4. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276273-S13509179772008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): BEA
  5. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276275-S13244009452008010300000) for 3.2 LITER V6 4V FUEL INJECTION & IGNITION, ENGINE CODE(S): BHE
  1. Check following wire connection for open circuit and short circuit to Ground (GND) and B+
Electrical harness connector terminalVAG1598/31 test box socket
225
  1. Repair open circuit or short circuit if necessary.

If no malfunctions are found, but Leak Detection Pump (LDP) does not function during output Diagnostic Test Mode (DTM)

  1. Replace Leak Detection Pump (LDP) -V144-. Refer to «Leak Detection Pump (LDP) -V144-, removing and installing»(ref-276268-S13513945732008010300000) .
  2. Observe safety precautions after re-connecting Engine Control Module (ECM).

Refer to

  1. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276270-S08391981802008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMU
  2. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276271-S29225238592008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): ATC
  3. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276272-S33271097972008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AWP
  4. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276273-S13509179772008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): BEA
  5. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276275-S13244009452008010300000) for 3.2 LITER V6 4V FUEL INJECTION & IGNITION, ENGINE CODE(S): BHE

Checking input wire

  1. Switch ignition off.
  1. Connect VAG1598/31 test box to connector of wiring harness. Engine Control Module (ECM) must not be attached. Ground (GND) clip (arrow) at test box must be clipped to battery negative terminal (arrow).

Refer to

  1. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276270-S08391981802008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMU
  2. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276271-S29225238592008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): ATC
  3. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276272-S33271097972008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AWP
  4. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276273-S13509179772008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): BEA
  5. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276275-S13244009452008010300000) for 3.2 LITER V6 4V FUEL INJECTION & IGNITION, ENGINE CODE(S): BHE
  1. Check following wire connection for open circuit and short circuit to Ground (GND) and B+
Electrical harness connector terminalVAG1598/31 test box socket
180
  1. Repair open circuit or short circuit if necessary.
  2. Observe safety precautions after re-connecting Engine Control Module (ECM).

Refer to

  1. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276270-S08391981802008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMU
  2. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276271-S29225238592008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): ATC
  3. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276272-S33271097972008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AWP
  4. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276273-S13509179772008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): BEA
  5. «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276275-S13244009452008010300000) for 3.2 LITER V6 4V FUEL INJECTION & IGNITION, ENGINE CODE(S): BHE
  1. Generate readiness code.

Refer to

  1. «01 ON BOARD DIAGNOSTIC (OBD)»(ref-276270-S33964324242008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMU
  2. «01 ON BOARD DIAGNOSTIC (OBD)»(ref-276271-S40733996842008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): ATC
  3. «01 ON BOARD DIAGNOSTIC (OBD)»(ref-276272-S12227258552008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AWP
  4. «01 ON BOARD DIAGNOSTIC (OBD)»(ref-276273-S13756956692008010300000) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): BEA