The damaged wire harness contacts you're referring to are the connections to the BCM. Because the BCM controls numerous functions, identifying *exactly* which contacts are damaged requires a wiring diagram specific to your 1990 Cherokee Limited. These functions can include things like:
* Interior lights: Dome light, courtesy lights, glovebox light
* Power locks and windows: Power window operation, door lock actuators
* Security system (if equipped): Alarm system activation and deactivation
* Gauges and warning lights: Some gauge illumination or warning lights might be controlled by the BCM
* Other electrical accessories: Depending on options, other accessories could be managed through it.
To find out which specific circuits are affected, you need:
1. A wiring diagram: A factory service manual for your specific year and model Cherokee Limited is ideal. These diagrams show the pinouts of the BCM connector and which wires go to which components. You can often find these manuals online (through online retailers or automotive repair sites).
2. A multimeter: This will let you test the continuity and voltage at the damaged connectors to pinpoint the problem.
Without the specific wiring diagram, it's impossible to say exactly which circuits are affected by the damaged contacts. However, the general location and the yellow box strongly suggest the BCM and its associated harness. Repairing damaged contacts might involve soldering, crimping new connectors, or replacing sections of the harness, depending on the extent of the damage.
