Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP1999WRANGLER SE, STANDARDREPAIR AND DIAGNOSISBODY & FRAMEBODY, CAB CONTROL SYSTEMSBODY CONTROL COMPUTER - INTRODUCTIONCONNECTOR IDENTIFICATION
1999 Jeep Wrangler SE, Standard
Connector Identification
1999 Jeep Wrangler SE, StandardSECTION Connector Identification
NOTE:
For terminal identification of body control system connectors, see Fig 1
-Fig 40
. Connector terminal numbers are molded into connectors. If connector terminal identification differs from that shown in figure, use wire colors to ensure correct circuit is being tested.
CONNECTOR IDENTIFICATION DIRECTORY
| Connector | See Fig. |
|---|---|
| Air Bag Control Module (Cherokee & Wrangler) | Fig 1 |
| Air Bag Control Module (Grand Cherokee) | Fig 2 |
| Automatic Headlight Sensor/VTSS LED (Grand Cherokee) | Fig 3 |
| Automatic Zone Control "C1" (Grand Cherokee) | Fig 4 |
| Automatic Zone Control "C2" (Grand Cherokee) | Fig 5 |
| Body Control Module "C1" (Grand Cherokee) | Fig 6 |
| Compass Mini-Trip Computer (Cherokee & Wrangler) | Fig 7 |
| Data Link Connector | Fig 8 |
| Diagnostic Junction Port (Grand Cherokee) | Fig 9 |
| Driver's Door Lock Motor/Ajar Switch (Grand Cherokee) | Fig 10 |
| Driver's Door Module "C1"(Grand Cherokee) | Fig 11 |
| Driver's Door Module "C2"(Grand Cherokee) | Fig 12 |
| Driver's Rear Door Lock Motor/Ajar Switch (Grand Cherokee) | Fig 13 |
| Driver's Rear Power Window Switch (Grand Cherokee) | Fig 14 |
| Front Lighting Module (Grand Cherokee) | Fig 15 |
| Ignition Switch (Grand Cherokee) | Fig 16 |
| Instrument Cluster (Cherokee & Wrangler) | Fig 17 |
| Instrument Cluster (Grand Cherokee) | Fig 18 |
| ISO Relay | Fig 19 |
| Junction Block "C1", "C2" & "C3" (Grand Cherokee) | Fig 20 |
| Junction Block-Front View (Grand Cherokee) | Fig 21 |
| Junction Block-Rear View (Grand Cherokee) | Fig 22 |
| Left Multi-function Switch (Grand Cherokee) | Fig 23 |
| Manual Temperature Control "C1" (Grand Cherokee) | Fig 24 |
| Memory Seat Module "C1" (Grand Cherokee) | Fig 25 |
| Memory Seat Module "C2" (Grand Cherokee) | Fig 26 |
| Powertrain Control Module | Fig 27 |
| Passenger's Door Lock Motor/Window Switch (Cherokee) | Fig 28 |
| Passenger's Door Lock Motor/Ajar Switch (Grand Cherokee) | Fig 29 |
| Passenger Door Module "C1" (Grand Cherokee) | Fig 30 |
| Passenger Door Module "C2" (Grand Cherokee) | Fig 31 |
| Passenger Rear Power Window Switch (Grand Cherokee) | Fig 32 |
| Power Distribution Center (Grand Cherokee) | Fig 33 |
| Relay (Typical) | Fig 34 |
| Right Multi-Function Switch | Fig 35 |
| Sentry Key Immobilizer Module | Fig 36 |
| Sunroof Control Module (Grand Cherokee) | Fig 37 |
| Sunroof Switch (Grand Cherokee) | Fig 38 |
| Vehicle Information Center (Grand Cherokee) | Fig 39 |
| Wiper Motor (Grand Cherokee) | Fig 40 |
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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.