P1634, P1635
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp on.
Car in limp-home mode.
P1634
Voltage Supply Group 1. Short to Ground.
P1635
Voltage Supply Group 1. Short to B+.
Fault symptoms
Conditions
The following conditions apply for this DTC:
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P1634:
The power supply is shorted to ground. The output voltage is less than 4.8 V for 0.2 seconds.
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P1635:
The power supply is shorted to the battery voltage. The output voltage exceeds than 5.2 V for 0.2 seconds.
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Diagnostic help
If there is a fault, the car reacts according to the limp-home values it receives for boost pressure (100 kPa/1 bar) and charge air temperature (20°C).