Dodge Durango (HB). Manual — part 236
*NO RESPONSE FROM PCM
HB
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 165
*NO RESPONSE FROM PCM (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
Possible Causes
(A919) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z937) (Z913) GROUND CIRCUIT OPEN
(F202) (F924) FUSED IGNITION SW OUTPUT CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
POWERTRAIN CONTROL 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 FCM for any active CAN C hardware DTCs, 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.
8E - 166
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
HB
*NO RESPONSE FROM PCM (CONTINUED)
2.
(A919) FUSED B(+) CIRCUIT OPEN OR SHORTED
Turn the ignition off.
Disconnect the PCM C1 harness connector.
CAUTION: Do not probe the PCM harness connectors. Probing
the PCM harness connectors will damage the PCM terminals
resulting in poor terminal to pin connection. Install Miller Special
Tool #8815 to perform diagnosis.
Using a 12-volt test light connected to ground, check the (A919) Fused
B(+) circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (A919) Fused B(+) circuit for an open or short.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER
- 5.
3.
(Z913) (Z937) GROUND CIRCUIT OPEN
Using a 12-volt test light connected to 12-volts, check each (Z913) and
(Z937) ground circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 4
No
>> Repair the ground circuit for an open.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER
- 5.
HB
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 167
*NO RESPONSE FROM PCM (CONTINUED)
4.
(F202) (F924) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED
Turn the ignition on.
Using a 12-volt test light connected to ground, check each (F202) and
(F924) Fused Ignition Switch Output circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 5
No
>> Repair the Fused Ignition Switch Output circuit for an open
or short.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER
- 5.
5.
(D65) CAN C BUS (+) CIRCUIT OPEN
Turn the ignition off.
Disconnect the FCM C1 harness connector.
Measure the resistance of the (D65) CAN C Bus (+) circuit between
the FCM connector and the appropriate terminal of the special tool
#8815.
Is resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the (D65) CAN C Bus (+) circuit for an open.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER
- 5.
8E - 168
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
HB
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