39 distinct codes across 35 real Opel diagnostics.
39 distinct codes across 35 real diagnostics on Opel, including the Opel-specific ones no generic code list can decode.
Opel-specific codes
These are manufacturer-specific, which means the same code on another marque is a different fault. That is exactly why they have no page of their own and no entry in any generic code list. Scoped to Opel and ranked by how often we have actually seen them, they are a claim we can stand behind.
- B1267, seen in 4 Opel diagnostics
- B1411, seen in 3 Opel diagnostics
- P1641, seen in 3 Opel diagnostics
- P1643, seen in 3 Opel diagnostics
- B120F, seen in 2 Opel diagnostics
- B1211, seen in 2 Opel diagnostics
- B1221, seen in 2 Opel diagnostics
- B1236, seen in 2 Opel diagnostics
- B1266, seen in 2 Opel diagnostics
- B1270, seen in 2 Opel diagnostics
- P1642, seen in 2 Opel diagnostics
- P1405, seen in 1 Opel diagnostic
- P1614, seen in 1 Opel diagnostic
- P1625, seen in 1 Opel diagnostic
- P16E4, seen in 1 Opel diagnostic
- P1740, seen in 1 Opel diagnostic
- P1808, seen in 1 Opel diagnostic
Standard codes we see most on Opel
These are standardised, so they mean the same thing on every vehicle. The counts are what we see on Opel specifically.
- P0135, O2 sensor heater circuit, bank 1 sensor 1
- P0141, O2 sensor heater circuit, bank 1 sensor 2
- P0443, Evaporative emission system purge control valve circuit
- P0011, A camshaft position timing over-advanced or system performance, bank 1
- P0017, Crankshaft/camshaft position correlation, bank 1 sensor B
- P0014, B camshaft position timing over-advanced or system performance, bank 1
- P0171, System too lean, bank 1
- P2002, Diesel particulate filter efficiency below threshold, bank 1
- P0001, Fuel volume regulator control circuit open
- P0111, Intake air temperature sensor 1 circuit range/performance
- P0118, Engine coolant temperature circuit high
- P0272, Cylinder 4 contribution or balance
- P0335, Crankshaft position sensor A circuit
- P0420, Catalyst system efficiency below threshold, bank 1
- P0632, Odometer not programmed in ECM/PCM
- P2681, not individually documented
- U0100, Lost communication with ECM/PCM A
- U0164, Lost communication with HVAC control module
- U2105, not individually documented
What tends to go wrong on Opel
By share of the codes we have seen on this marque. A description of our own caseload, not a reliability ranking.
- Body, manufacturer-specific, 19 code sightings
- Powertrain, manufacturer-specific, 14 code sightings
- Valve timing and camshaft, 9 code sightings
- Lambda and O2 sensors, 8 code sightings
- Bus communication, 4 code sightings
- EVAP and fuel tank, 4 code sightings