Back to 1997 Lexus SC 300

1997 LEXUS SC 300

3.0L I6RWDAUTOMATICgas
Repairs0Labor504Torque6016Fluid7DTC654Battery0Maintenance0Recalls0
P0124high severityPowertrain

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

on 1997 Lexus SC 300 3.0L I6 · 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

  1. Wiggle test on TPS connector
  2. Monitor TPS signal for dropouts
  3. Inspect wiring

Repair notes

Repair connector or replace TPS.

Other Powertrain codes on this vehicle

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