P1240
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE comes on after two driving cycles.
Throttle control is imprecise.
Cruise control inoperative.
Starting problems, especially when engine is cold.
Throttle Motor Circuit. Shorted.
Fault symptoms
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CHECK ENGINE comes on after two driving cycles.
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Throttle control is imprecise.
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Cruise control inoperative.
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Starting problems, especially when engine is cold.
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Conditions
The following conditions apply for this DTC:
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Ignition ON and motor current exceeds 8 A during the positive or negative portion of the PWM period.
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Condition met for 3 minutes.
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Diagnostic help
This DTC is generated when the lead from control module pin 48 is shorted to B+.
Diagnostic tool functions related to this fault are:
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Activation of output for throttle motor.
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See also the description of activations under
Menu "Activation"
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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