Chrysler 300M 1999 Manual page 649

TEST 5A
REPAIRING CONTROLLER ANTI-LOCK BRAKES MODULE NO RESPONSE
Perform TEST 1A Before Proceeding
START TEST 5A.
USING AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE CAB
GROUND CIRCUITS
AT...
USING A VOLTMETER,
MEASURE THE FUSED
B(+) CIRCUIT
(CAVITY 9).
FIG. 1
TURN IGNITION ON.
USING A VOLTMETER,
MEASURE THE...
REMOVE AND INSPECT
FUSE #17 "ABS
FUSE" IN THE
JUNCTION BLOCK.
FIG. 2
TURN IGNITION OFF.
*Perform Verification TEST VER-2A.
KEY OFF.
DISCONNECT THE
CONTROLLER ANTILOCK
BRAKE HARNESS
CONNECTOR.**
THE CAB HARNESS
CONNECTOR
(CAVITIES 8 AND 24).
FIG. 1
FUSED IGNITION
SWITCH OUTPUT
CIRCUIT
(CAVITY 23).
FIG. 1
USING AN OHMMETER,
MEASURE BETWEEN
GROUND AND THE FUSED
IGNITION SWITCH
OUTPUT CKT. FIG. 1
**Check connectors - Clean / repair as necessary.
639
IS ANY TERMINAL YES
DAMAGED, PUSHED
OUT OR MISWIRED?
NO
IS THE RESISTANCE NO
BELOW 10.0 OHMS ON
BOTH CIRCUITS?
YES
IS THE VOLTAGE NO
ABOVE 10.0 VOLTS?
YES
IS THE VOLTAGE YES
ABOVE 10.0 VOLTS?
NO
YES
IS THE FUSE OK?
NO
IS THE RESISTANCE YES
BELOW 5.0 OHMS?
NO
REPAIR AS
NECESSARY.*
REPAIR THE OPEN
GROUND CIRCUIT.*
PERFORM TEST
5B.
CONTINUE TEST
5A ON THE NEXT
PAGE.
REPAIR THE OPEN
FUSED IGNITION
SWITCH OUTPUT
CIRCUIT.*
REPAIR THE FUSED
IGNITION SWITCH
OUTPUT CIRCUIT FOR
A SHORT TO
GROUND.*
REPLACE THE FUSE.*
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