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Home >> Jeep >> 2004 >> Wrangler X, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Powertrain Diagnostic Procedures >> DRIVEABILITY - Gas >> DTC P1597: Speed Control Switch Always Low >> Possible Causes

Possible Causes

  1. S/C SWITCH VOLTAGE BELOW 1.0 VOLT
  2. S/C ON/OFF SWITCH
  3. S/C RESUME/ACCEL SWITCH
  4. CLOCKSPRING SHORTED TO GROUND
  5. (V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
  6. (V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO (K4) SENSOR GROUND
  7. PCM
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