Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2003 >> Liberty Limited, 4WD, Part Time, 45RFE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1830: Clutch Override Relay Control Circuit >> Test

DTC P1830: Clutch Override Relay Control Circuit: Test

NOTE: Clutch Switch Override Relay may also be referred to as Clutch Interlock Relay.
  1. Turn the ignition on. With the DRBIII®, record and erase DTCs. Turn the ignition off. Turn the ignition on. With the DRBIII®, read DTCs. Is the Good Trip Counter equal to zero? If yes, go to next step. If no, go to INTERMITTENT CONDITION  under SELF-DIAGNOSTIC SYSTEM.
  2. Keep ignition on. With the DRBIII®, erase DTCs. Turn the ignition off. Install a substitute relay in place of the Clutch Switch Override Relay. Clutch Switch Override Relay is located in PDC. Turn the ignition on. With the DRBIII®, read DTCs. Does the DTC reset? If yes, go to next step. If no, replace the Clutch Switch Override Relay.
  3. Turn ignition off. Reconnect PCM connectors. Turn the ignition on. Using a 12-volt test light connected to ground, check the Clutch Override Switch Fused Ignition Output circuit at the Clutch Override Relay Control harness connector. Compare the brightness to that of a direct connection to the battery. The test light must illuminate brightly. Does the test light illuminate brightly? If yes, repair the Clutch Override Switch Fused Ignition circuit for an open. If the fuse is open, make sure to check for a short to ground. If no, go to next step.
  4. Turn the ignition off to the lock position. Disconnect the PCM harness connectors. Measure the resistance of the (K90) Clutch Switch Override Relay Control circuit. Is the resistance above 5.0 ohms? If yes, repair the open in the (K90) Clutch Switch Override Relay Control circuit. If no, go to the next step.
  5. Measure the resistance between ground and the (K90) Clutch Switch Override Relay Control circuit. If no, go to the next step.
    6. NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
  6. Using the wiring diagram as a guide, inspect the wire harness and connectors. Pay particular attention to all power and ground circuits. If the there are no possible causes remaining, replace the Powertrain Control Module. Program the new PCM. See PROGRAMMING .
scientia non olet · About Mike's Workshop Manuals