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Home >> Saab >> 2001 >> 9-5 Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Fault Code Diagnosis >> P1532: Pedal Position Sensor 1 & 2 Circuit - Control Module Inputs Shorted To Each Other >> Fault Isolation Procedure

Fault Isolation Procedure

  1. Checking the control module's sensor input:
    • Unplug the connector: Throttle body (604).
    • Connect a jumper lead between pins 1 and 9 of the female connector.
    • Turn the ignition switch to the ON position.
    • Contact ECM.
    • Read value: Pedal Position Sensor 2.
    If the diagnostic tool shows 4.95-5.00 volts, go to step  3, otherwise go to next step.
  2. Rectifying the lead: Shorting between the sensor leads from pins 1 and 3 of the throttle body. Rectify the fault and go to step  4.
    3. NOTE: Next time the ignition switch is turned to the ON position the limp-home solenoid will be activated. The flap valve will then assume the mechanical limp-home position. It is therefore important to reset the limp-home mechanism AFTER all DTCs have been cleared.
  3. Changing components: Change the Throttle body. When finished, go to next step.
  4. Final check:
    • Turn the ignition switch to the ON position.
    • Clear DTCs (ECM).
    • Turn the ignition switch to the OFF position.
    • Wait for 10 seconds.
    • Reset the limp-home mechanism.
    • Clear the DTCs in all systems.
    • Carry out a drive cycle: Drive the car at varying engine loads and engine RPM for 5 minutes.
    • Evaluate the drive cycle: Check that the DTC has not recurred.
    If the trouble code has recurred, the ECM is probably at fault and will need replacement. Replace with known-good ECM and retest. If no DTCs are present, then the steps taken to rectify the fault were correct.
Fig 1: Pedal Position Sensor 1 & 2 Circuit (4-Cyl)
G00207387Courtesy of SAAB-SCANIA OF AMERICA, INC.
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