Chrysler 300M 1999 Manual page 665

TEST 9B
REPAIRING RADIO NO RESPONSE CONDITION
Perform TEST 9A Before Proceeding
START TEST 9B.
USING AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE FUSED
IGNITION SWITCH
OUTPUT CKT. FIG. 1
*Perform Verification TEST VER-2A.
TURN IGNITION OFF.
DISCONNECT THE
RADIO C2 HARNESS
CONNECTOR.**
**Check connectors - Clean / repair as necessary.
655
IS THE RESISTANCE YES
BELOW 5.0 OHMS?
NO
REPAIR THE FUSED
IGNITION SWITCH
OUTPUT CKT FOR A
SHORT TO GROUND.
REPLACE THE FUSE.*
REPLACE THE RADIO
AND REPLACE THE
FUSE.*
V
E
H
I
C
L
E
C
O
M
M
U
N
I
C
A
T
I
O
N