P1251
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE goes on immediately.
Throttle control in limp-home mode.
Idling speed incorrect.
Cruise control not working.
Throttle Motor. Full PWM in Closing Direction. NOTE. May set if Mechanism is not Reset.
Fault symptoms
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CHECK ENGINE goes on immediately.
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Throttle control in limp-home mode.
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Idling speed incorrect.
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Cruise control not working.
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Conditions
The following conditions apply for this DTC:
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Throttle motor receiving 100% PWM in closing direction.
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Or:
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Engine running less than 5 sec.
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Throttle motor receiving 100% PWM in closing direction.
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Diagnostic help
A mechanical fault is preventing the throttle from closing.
Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.
