Section 38 (On Board Diagnostic (OBD) - 4.2L V8 5V - BCY)
WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
- On Board Diagnostic (OBD)
- Motronic On Board Diagnostic (OBD)
- Fault memory, interrogating and erasing
- Fault table (16394 to 17607)
- Fault table (17608 to 17818)
- Fault table (17819 to 19718)
- Final control diagnosis
- Notes
- The final control diagnosis function actuates the following components in the stated sequence:
- Requirement
- Work sequence
- Actuation of EVAP canister purge regulator valve -N80- (fuel tank breather valve)
- Actuation of Secondary air injection solenoid valve -N112-
- Actuation of Secondary air injection pump relay -J299-
- Actuation of Wastegate bypass regulator valve -N75-
- Actuation of Valve -2- for camshaft adjustment -N208-
- Diagnosis of Fuel System Leak Detection Pump (LDP) -V144- actuation
- Actuation of Recirculating valve for turbocharger -N249-
- Actuation of Right Electro -Hydraulic engine mount solenoid valve -N145 -
- Actuation of Left Electro-Hydraulic engine mount solenoid valve -N144 -
- Actuation of Valve -1- for camshaft adjustment -N205-
- Actuation of vacuum pump for brake system
- Actuation of Fuel pump 2 relay -J49-
- Actuation of coolant fan control 2
- Actuation of coolant fan control 1
- Actuation of injectors
- Basic setting
- Control module, coding
- Measured value block, reading
- Coding II
- Readiness code
- Readiness code, reading
- Work sequence
- Readiness code, generating
- Special tools and workshop equipment required
- Requirements
- Step 1: Interrogating fault memory
- Step 2: Erasing fault memory
- Step 3: Adapting throttle valve control module to engine control module
- Step 4: Adaptation of kickdown function
- Step 5: Diagnosis of EVAP canister purge regulator valve
- Step 6: Diagnosis of tank leak test
- Step 7: Diagnosis of oxygen sensor control system
- Step 8: Diagnosis of aging of oxygen sensors upstream of catalytic converter
- Step 9: Diagnosis of oxygen sensor interchange after catalytic converter
- Step 10: Checking oxygen sensor heating
- Step 11: Diagnosis of oxygen sensor aging after catalytic converter
- Step 12: Diagnosis of secondary air system
- Step 13: Diagnosis of catalytic converters
- Step 14: Reading readiness code