P0124high severityPowertrain
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
on 2002 BMW 540iT E39 4.4L V8 M62 Touring · RWD
What this code means
The TPS signal is intermittent.
Symptoms
- Check Engine Light (intermittent)
- Surging
- Hesitation
- Erratic idle
Common causes
- Loose TPS connector
- Worn TPS
- Wiring chafing
Diagnostic steps
- Wiggle test on TPS connector
- Monitor TPS signal for dropouts
- Inspect wiring
Repair notes
Repair connector or replace TPS.
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