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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 >> P1310: Ignition Discharge Module - Not Powered, Bank 1 >> Fault Isolation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Fault Isolation Procedure

  1. Checking the ignition discharge module's power supply:
    • Unplug the connector: Ignition discharge module (346). (V6 - Bank 1, 346R)
    • Turn the ignition switch to the ON position.
    • Connect Test Lamp (86 1 857) to pin 10 of the female connector and a good grounding point.
    • Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.
    If the test lamp illuminates, go to step  3, otherwise go to next step.
  2. Rectifying the lead: The lead from fuse 14 to pin 10 of the female connector is faulty. Rectify the fault and go to step  6.
  3. Checking the ground lead:
    • Connect Test Lamp (86 1 857) to pins 10 and 6.
    • Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.
    If the test lamp comes on and shines weakly (this is normal), go to step  5, otherwise go to next step.
  4. Rectifying the lead: The lead from grounding point G7 to pin 6 of the female connector is faulty. Rectify the fault and go to step  6.
  5. Changing components: Change the Ignition discharge module (V6 - Bank 1). When finished, go to next step.
  6. Final check:
    • 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: Ignition Discharge Module Circuit (4-Cyl)
G00207380Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Ignition Discharge Module Circuit (V6)
G00207430Courtesy of SAAB-SCANIA OF AMERICA, INC.
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