E39 / P1400 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Check Engine
Cold Start Emission Reduction Control System, Performance Problems
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Fault symptom
Check Engine
On-board diagnosis
Type of diagnosis:
Enable criteria:
General conditions for this DTC |
Catalytic converter temperature below 300°C. |
Coolant temperature over 17 °C. |
Vehicle speed below 2.5 km/h. |
Accelerator pedal released. |
Fault criteria:
The actual exhaust energy model does not correspond with the expected exhaust energy model. |
Fault handling:
Diagnostic help
Diagnosis regards:
Diagnostics concerns finding a mechanical or electrical fault. |
Functions in the diagnostic tool related to the fault:
(See also description of readings/activations in diagnostic tool) |