Powertrain Control Module; Manifold Absolute Pressure (Map) Sensor; Powertrain Control Module (Pcm) - Jeep cherokee 2000 Service Manual

14 - 46 FUEL SYSTEM
REMOVAL AND INSTALLATION (Continued)
Fig. 28 Mounting Bolts (Screws)—IAC Motor
1 – IDLE AIR CONTROL MOTOR
2 – MOUNTING SCREWS
MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR
The MAP sensor is mounted to the side of the
throttle body (Fig. 24) or (Fig. 25). An L-shaped rub-
ber fitting is used to connect the MAP sensor to
throttle body (Fig. 29).
Fig. 29 MAP Sensor Mounting
1 – THROTTLE BODY
2 – MAP SENSOR
3 – RUBBER FITTING
4 – MOUNTING SCREWS (2)
REMOVAL
(1) Remove air cleaner intake tube at throttle
body.
(2) Remove two MAP sensor mounting bolts
(screws) (Fig. 29).
(3) While removing MAP sensor, slide the rubber
L-shaped fitting (Fig. 29) from throttle body.
(4) Remove rubber L-shaped fitting from MAP sen-
sor.
INSTALLATION
(1) Install rubber L-shaped fitting to MAP sensor.
(2) Position sensor to throttle body while guiding
rubber fitting over throttle body vacuum nipple.
(3) Install MAP sensor mounting bolts (screws).
Tighten screws to 3 N·m (25 in. lbs.) torque.
(4) Install air cleaner intake tube.

POWERTRAIN CONTROL MODULE (PCM)

The PCM is located in the engine compartment
next to the air cleaner assembly (Fig. 30).
Fig. 30 PCM Location
1 – (3) 32–WAY CONNECTORS
2 – PCM
REMOVAL
To avoid possible voltage spike damage to the
PCM, ignition key must be off, and negative battery
cable must be disconnected before unplugging PCM
connectors.
(1) Disconnect negative battery cable at battery.
(2) Remove cover over electrical connectors. Cover
snaps onto PCM.
(3) Carefully unplug the three 32–way connectors
(Fig. 31) from PCM.
(4) Remove three PCM mounting bolts and remove
PCM from vehicle.
INSTALLATION
(1) Install PCM and mounting bolts to vehicle.
(2) Tighten bolts to 4 N·m (35 in. lbs.).
(3) Check pin connectors in the PCM and the three
32–way connectors for corrosion or damage. Also, the
pin heights in connectors should all be same. Repair
as necessary before installing connectors.
XJ