P1260

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE.

P1260

Fault symptom

•	CHECK ENGINE.

On-Board Diagnostics

Type of diagnosis:

-	Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria: (Conditions that must be fulfilled before the diagnosis can be performed.)

-	Ignition in ON position.

Fault criteria: (After enable criteria have been fulfilled, the diagnosis checks whether fault criteria are fulfilled.)

-	Throttle motor receiving close to 0 % PWM in opening direction for 4 seconds.

Dependents: (Occasionally after fault criteria have been fulfilled, a number of other diagnostics must report OK before the trouble code can finally be generated.)

-

None.

System reaction to a fault: (After fault criteria have been fulfilled, certain measures will occasionally be taken.)

-

None.

OK report: (The diagnosis can be included as a dependent for another diagnosis and must therefore report OK even if it is continuous. The OK report is also used in fault handling to decrement the fault counter.)

-	Accelerator pedal has been depressed at some time and then fully released. 120 s has expired since then without fault criteria being fulfilled.

Fault handling: (See “Fault diagnosis, general” for more information.)

•

Type

Diagnostic help

Throttle return spring is too weak.

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.