ME9 / P0246 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Malfunction Indicator Lamp
Charge Air Control Valve Circuit. Short to B+.
Fault symptom
Malfunction Indicator Lamp
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Battery voltage must be between 10 - 18 V. |
| Drive the car in 3rd gear, 2000 rpm. Accelerate up to 3500 rpm. |
Fault criteria:
| When output voltage is close to B+ for more than 1 second. |
OK report:
| Drive the car in 3rd gear, even acceleration at 1900 rpm. Then full gas acceleration (pedal not depressed 100%) up to 5000 rpm. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
