P0502
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE comes on after two driving cycles.
Cruise control inoperative.
Vehicle Speed. No input signal.
Fault symptoms
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CHECK ENGINE comes on after two driving cycles.
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Cruise control inoperative.
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Conditions
The following conditions apply for this DTC:
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Engine running and vehicle stationary.
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Brake pedal not depressed.
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Engine speed over 2000 rpm.
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Load exceeds 500 mg/c for more than 5 s.
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After which, 17 minutes with vehicle stationary.
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On cars with automatic transmission, the selector lever must be in a position other than P or N.
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Diagnostic help
Fault diagnosis concerns electrical faults in connecting cables (first check whether there is a fault in the ABS).
Diagnostic tool functions related to this fault are:
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Vehicle Speed (Wire from ABS), unit km/h
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See also the description of test values under ”Fault diagnosis, general” for more information.
Check the wiring
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Note
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Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.
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