Powertrain
generic / SAE
P278E
Kick Down Switch Circuit Intermittent/Erratic
The kick-down switch signal jumps or drops out intermittently. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 8E
Possible causes
- Switch connector not fully seated high
- Worn switch contacts medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–400 €
- Estimated time: 0.3–1.5 h
- Component: kickdown switch
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012