Chrysler 300M 1999 Manual page 695

TEST 4A
REPAIRING HORN CIRCUIT
Perform TEST 1A Before Proceeding
START TEST 4A.
WITH THE DRB,
ENTER "BODY
COMPUTER" THEN
"INPUT/OUTPUT".
REMOVE THE BODY
CONTROL MODULE
FROM THE JUNCTION
BLOCK.**
*Perform Verification TEST VER-3A.
PUSH THE HORN
BUTTON ON THE
STEERING WHEEL.
OBSERVE THE
"DECKLID CYLINDER
SWITCH" STATUS.
CONNECT A JUMPER
WIRE BETWEEN GROUND
AND THE HORN RELAY
CONTROL CIRCUIT
(CAV 18). FIG. 1
**Check connectors - Clean / repair as necessary.
685
DOES THE HORN NO
SOUND?
YES
DOES THE DRB NO
DISPLAY SWITCH
"PRESENT"?
YES
DOES THE HORN NO
SOUND?
YES
H
C
REFER TO THE
APPROP SERVICE
MANUAL FOR HORN
REPAIR.
H
PERFORM TEST
3A.
C
U
R
REPLACE THE
JUNCTION BLOCK.*
M
REPLACE THE BODY
CONTROL MODULE.*
V
E
I
L
E
T
E
F
T
S
E
I
T
Y
S
Y
S
T
E