Jeep Cherokee 2000 Service Manual - page 1539
DIAGNOSIS AND TESTING
GENERAL DIAGNOSIS INFORMATION
Shift points are controlled by the transmission con-
trol module (TCM). Before attempting repair, deter-
mine if a malfunction is electrical or mechanical.
The TCM used with the AW–4 transmission has a
self–diagnostic program compatible with the DRBIII
scan tool. The tester will identify faults in the elec-
trical control system.
Diagnosis
should
begin
with
the
Preliminary
Inspection And Adjustment procedure. It is will help
determine if a problem is mechanical or electrical.
The first procedure step is Initial Inspection and
Adjustment.
EFFECTS OF INCORRECT FLUID LEVEL
A low fluid level allows the pump to take in air
along with the fluid. Air in the fluid will cause fluid
pressures to be low and develop slower than normal.
Fig. 37 Ignition Interlock Cable Routing
1 – SHIFT MECHANISM
2 – LOCK-TAB
3 – IGNITION LOCK INTERLOCK
4 – STEERING COLUMN
5 – SOLENOID
6 – WIRE CONNECTOR
7 – LEVER
8 – MOUNT BRACKET
9 – SHIFT CABLE
10 – AUTOMATIC TRANSMISSION
11 – TIE STRAP
12 – PARK/BRAKE INTERLOCK CABLE
Fig. 38 Ignition Key Cylinder Actuation
1 – SLIDER LOCKED
2 – CAM RETURN SPRING
3 – INTERLOCK CABLE
4 – CAM
5 – SLIDER
XJ
AW–4 AUTOMATIC TRANSMISSION
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DIAGNOSIS AND TESTING (Continued)