Cherokee 4WD L6-4.0L VIN S (1998)
4. Test MAP sensor supply voltage at sensor connector between terminals A and C (Fig. 27) with the ignition ON. The voltage should be
approximately 5 volts (+/- 0.5V). Five volts (+/- 0.5V) should also be at cavity A-17 of the PCM wire harness connector. Repair or replace the
wire harness as necessary.
5. Test the MAP sensor ground circuit at sensor connector terminal A (Fig. 27) and PCM connector A-4. Repair the wire harness if necessary.
