CHIME WARNING SYSTEM DIAGNOSIS
CONDITION
POSSIBLE CAUSES
CORRECTION
NO DOOR AJAR WARNING
CHIME WITH A DOOR
OPENED, BUT OTHER
CHIME FEATURES OK
1. Driver or passenger door
ajar switch ground circuit
open.
1. Check for continuity between the ground circuit
cavity of the door wire harness connector for the
driver or passenger door ajar switch (1 switch -
standard/club cab, 3 switches - quad cab) and a
good ground. If not OK, repair the open ground
circuit to ground as required.
2. Driver or passenger door
ajar switch sense circuit
open.
2. Check for continuity between the driver or
passenger door ajar switch sense circuit cavities
of the door wire harness connector for the driver
or passenger door ajar switch and the body wire
harness connector (Connector C2) for the CTM.
Repair the open driver or passenger door ajar
switch sense circuit, if required.
3. Faulty driver or passenger
door ajar switch.
3. Check for continuity between the ground circuit
cavity and the driver or passenger door ajar
switch sense circuit cavity of the door ajar switch
pigtail wire connector. There should be continuity
with the door opened. Replace the faulty door
latch, if required.
NO KEY-IN IGNITION
WARNING CHIME, BUT
OTHER CHIME FEATURES
OK
1. Ignition switch ground
circuit open.
1. Check for continuity between the ground circuit
cavity of the instrument panel wire harness
connector for the ignition switch and a good
ground. Repair the open ground circuit to ground,
if required.
2. Key-in ignition switch
sense circuit open.
2. Check for continuity between the key-in ignition
switch sense circuit cavities of the instrument
panel wire harness connector for the ignition
switch and the instrument panel wire harness
connector (Connector C1) for the CTM. Repair
the open key-in ignition switch sense circuit, if
required.
3. Faulty ignition switch.
3. Check for continuity between the key-in ignition
switch sense circuit terminal and the ground
circuit terminal in the ignition switch connector
receptacle. There should be continuity with the
key in the ignition lock cylinder. Replace the faulty
ignition switch, if required.
KEY-IN IGNITION WARNING
CHIME WITH KEY
REMOVED FROM IGNITION
LOCK CYLINDER
1. Key-in ignition switch
sense circuit shorted.
1. Disconnect the instrument panel wire harness
connector for the ignition switch and the
instrument panel wire harness connector
(Connector C1) for the CTM. Check for continuity
between the key-in ignition switch sense circuit
cavity and a good ground. There should be no
continuity. Repair the shorted key-in ignition
switch sense circuit, if required.
8B - 4
CHIME/BUZZER
AN
CHIME WARNING SYSTEM (Continued)