Volkswagen Golf 1999 Service Manual page 469

DTC table: SAE P0 codes
Speed and idling control
DTC code
SAE VAG
P0501 16885 Vehicle speed
signal
Implausible signal
P0506 16890 Idle speed control
Revs below
specification
P0507 16891 Idle speed control
Above
specifications
P0513 16897 Incorrect
Immobilizer code
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...
DTC text
- Check speed signal
- Check throttle valve control module
24-59
- Perform immobilizer On Board Diagnosis
(OBD):
Repair Manual, Electrical Equipment On
Board Diagnostic (OBD), Repair Group 01
Corrective action
Page 24-188
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Page
12/2/2005