Dodge Caliber. Manual — part 253
Possible Causes
(A419) (A420) FUSED B (+) CIRCUIT OPEN OR SHORTED
(Z960) GROUND CIRCUIT OPEN
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
AMPLIFIER
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
(A419) (A420) FUSED B(+) CIRCUIT OPEN OR SHORTED
Turn the ignition off.
Disconnect the Radio Amplifier C1 harness connector.
Using a 12-volt test light connected to ground, check each (A419) and
(A420) Fused B(+) circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 3
No
>> Repair the (A419) or (A420) Fused B(+) circuit for an open
or short.
Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 123
3.
(Z960) GROUND CIRCUIT OPEN
Using a 12-volt test light connected to 12-volts, check each (Z960)
ground circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 4
No
>> Repair the (Z960) ground circuit for an open.
Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
4.
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
Turn the ignition on.
NOTE: One open circuit will not cause this condition.
Measure the voltage between the (D54) CAN B Bus (-) circuit and
ground.
Measure the voltage between the (D55) CAN B Bus (+) circuit and
ground.
Is there any voltage present on either circuit?
Yes
>> Replace the Radio Amplifier in accordance with the service
information.
Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Repair the (D55) and (D54) CAN B Bus circuits for an open.
Inspect the connector for damage.
Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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*NO RESPONSE FROM ALL WHEEL DRIVE CONTROL (AWD) MODULE
For a complete wiring diagram Refer to Section 8W.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 125
Possible Causes
(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
(A923) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z967) GROUND CIRCUIT OPEN
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
ALL WHEEL DRIVE CONTROL (AWD) MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
NOTE: Check the TIPM for any active CAN C hardware DTC’s, perform DTC before proceeding.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED
Turn the ignition on.
Disconnect the AWD harness connector.
Using a 12-volt test light connected to ground, check the (F202) Ignition
Switch Output (Run-Start) circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (F202) Ignition Switch Output (Run-Start) circuit
for an open or short.
Perform the appropriate VERIFICATION TEST.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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