P1636, P1637
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp on.
Car in Limp Home mode
P1636
Voltage Supply Group 2. Short to Ground.
P1637
Voltage Supply Group 2. Short to B+.
Fault symptoms
Conditions
The following conditions apply for this DTC:
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P1636
Power supply to pedal position sensor 2, atmospheric pressure sensor or mass air flow sensor is short-circuited to ground. Output voltage under 4.8 V.
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P1637
Power supply to pedal position sensor 2 short-circuited to battery voltage. Output voltage over 5.2 V.
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Diagnostic help
The engine speed has a fixed value of 1400 rpm. The car will not react to the accelerator as long as the fault persists. Substitute value for air mass is 1500 mg/comb and atmospheric pressure is 0.7 bar.
