1999 Jeep Wrangler SE, AutomaticFACTORY OEM SERVICE PROCEDURE

Component Location

COMPONENT LOCATION

Description Location
Cherokee 
Compass/Mini-Trip Computer (CMTC) Fig 2
Junction Block Fig 4
Power Distribution Center In Engine Compartment
Powertrain Control Module (PCM) Left Inner Fender
Remote Keyless Entry (RKE) Module Fig 2
Transmission Control Module (TCM) Fig 6
Grand Cherokee 
Airbag Control Module (ACM) Under Center Console, Beside Parking Brake Handle
Body Control Module (BCM) Fig 1
Controller Anti-Lock Brake (CAB) Module Mounted To Hydraulic Control Unit
Compass/Mini-Trip Computer (CMTC) Fig 2
Diagnostic Junction Port Fig 3
Junction Block Fig 3
Memory Seat Module (MSM) Under Driver's Seat
Powertrain Control Module (PCM) Right Rear Corner Of Engine Compartment
Remote Keyless Entry (RKE) Module Fig 2
Sentry Key Immobilizer Module (SKIM) Fig 5
Transmission Control Module (TCM) In Front Of PCM
Wrangler 
Airbag Control Module (ACM) In Front Of Center Console
Powertrain Control Module (PCM) Next To Battery
Fig 1: Identifying Body Control Module (Grand Cherokee)
G99C02142Courtesy of CHRYSLER CORP.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.