Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 376
*NO RESPONSE FROM MULTI-PURPOSE MODULE (POLICE AND TAXI INTERFACE
MODULE-PTIM)
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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For a complete wiring diagram Refer to Section 8W.
Possible Causes
(A913) FUSED B (+) CIRCUIT OPEN OR SHORTED
(Z910) GROUND CIRCUIT OPEN
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
MULTI-PURPOSE MODULE (POLICE AND TAXI INTERFACE MODULE-PTIM)
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.
(A913) FUSED B(+) CIRCUIT OPEN OR SHORTED
Turn the ignition off.
Disconnect the C1 Multi-Purpose Module (Police And Taxi Interface
Module-PTIM) harness connector.
Using a 12-volt test light connected to ground, check the (A913) Fused
B(+) circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (A913) Fused B(+) circuit for an open or short.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
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3.
(Z910) GROUND CIRCUIT OPEN
Using a 12-volt test light connected to 12-volts, check the (Z910)
ground circuit.
Does the test light illuminate brightly?
Yes
>> Go To 4
No
>> Repair the (Z910) ground circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
4.
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
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 Multi-Purpose Module (Police And Taxi Inter-
face Module-PTIM) in accordance with the service informa-
tion.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> Repair the (D55) and (D54) CAN B Bus circuits for an open.
Inspect the connector for damage.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
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*NO RESPONSE FROM MSMD (MEMORY SEAT MODULE)
For a complete wiring diagram Refer to Section 8W.
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