P1633

2CFB - P1633

Information saved in
DME

Fault code
2CFB - P1633

Fault text
Throttle-valve adaptation value

Fault description
Throttle Valve Adaptation Limp-Home Position Unknown
(Bank 1)

Condition for fault identification
Test condition:
Terminal change and request for adaptation
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V

Condition for fault memory entry
none

Action in service
1) Check: Sum of throttle valve voltages must equal 5 V,
2) Perform electrical check on wires to throttle valve
sensors,
Visual inspection of plug-in terminals (on components,
wiring harness and DME),
3) Component defect improbable, replace throttle valve only
in emergency

Fault effect and breakdown warning


Driver information
Warning light:
CC None status report: Reduced engine performance!,
MIL ON
EMB + rpm limit 1300 rpm

Service instruction
none