Jeep Cherokee (XJ): Diagnosis and testing

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Cooling system DESCRIPTION The cooling system regulates engine operating temperature. It allows the engine to reach normal operating temperature as quickly as possible, maintains normal operatin ...

Next pageOn-board diagnostics (OBD). Accessory drive belt diagnosis. Preliminary checks

On-board diagnostics (OBD) COOLING SYSTEM RELATED DIAGNOSTICS The Powertrain Control Module (PCM) has been programmed to monitor the certain following cooling system components:  If the en ...

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Tire pressure monitor system (tpms)
The Tire Pressure Monitor System (TPMS) will warn the driver of a low tire pressure based on the vehicle recommended cold placard pressure. The tire pressure will vary with temperature by approximately 1 psi (7 kPa) for every 12F (6.5C). This means that when the outside temperature decreases, ...