LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 1999 >> Cherokee Classic, 2.5 P >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Communication System >> System Tests >> Not Receiving Bus Messages Correctly
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Not Receiving Bus Messages Correctly

  1. Turn ignition off. Disconnect Powertrain Control Module (PCM). Turn ignition on. If scan tool displays BUS OPERATIONAL, replace PCM. If scan tool does not display BUS OPERATIONAL, go to next step.
  2. Turn ignition off. Disconnect Smart Key Immobilizer Module (SKIM). Turn ignition on. If scan tool displays BUS OPERATIONAL, replace SKIM. If scan tool does not display BUS OPERATIONAL, go to next step.
  3. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool displays BUS OPERATIONAL, replace instrument cluster circuit board. If scan tool does not display BUS OPERATIONAL, go to next step.
  4. Turn ignition off and wait 2 minutes. Disconnect Airbag Control Module (ACM). Turn ignition on. If scan tool displays BUS OPERATIONAL, see lemon-25(R) AIR BAG SERVICE & REPAIR, DOMESTIC CARS, LIGHT TRUCKS & VANS. If scan tool does not display BUS OPERATIONAL, go to next step.
  5. Turn ignition off and wait 2 minutes. Disconnect Transmission Control Module (TCM) (if equipped). Turn ignition on. If scan tool displays BUS OPERATIONAL, replace TCM. If scan tool does not display BUS OPERATIONAL, go to next step.
  6. Turn ignition off and wait 2 minutes. Disconnect Compass Mini-Trip Computer (CMTC) (if equipped). Turn ignition on. If scan tool displays BUS OPERATIONAL, replace CMTC. If scan tool does not display BUS OPERATIONAL, go to next step.
  7. Turn ignition off and wait 2 minutes. Disconnect Remote Keyless Entry (RKE) module (if equipped). Turn ignition on. If scan tool displays BUS OPERATIONAL, replace RKE module. If scan tool does not display BUS OPERATIONAL, replace scan tool cable or scan tool as necessary.
scientia non olet · About LEMON Manuals