T8 / P2135 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
Throttle Position Sensor Circuit, Plausibility Fault between Circuit 1 and 2
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
On-board diagnosis
Type of diagnosis:
Enable criteria:
| When the ECM is awake, diagnosis is active (even with the ignition off). |
| NONE of the following DTCs must be detected: |
| P0122, P0123, P0222, P0223 |
Fault criteria:
| When the difference in voltage between throttle position sensors 1 and 2 is 4 - 8%, depending on the position of the throttle (4% for unactuated pedal, 8% for fully depressed pedal). |
Dependent:
System reaction to a fault:
| Correction of mass air flow/combustion for fuel calculation is blocked. |
| Limited acceleration and idle function. |
| Secondary air switched off. |
OK report:
| Fault criterion not fulfilled and vehicle speed over 0 km/h for more than 60 s. |
Fault handling:
| (See section Fault handling III, "Other emission-related components and functions" for more information.) |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| • | Throttle Position Sensor 1 |
| • | Throttle Position Sensor 2 |
| (See also description of readings/activations in diagnostic tool) |
