Dodge ZB 2005 Service Manual page 1291

DRIVEABILITY - GAS
P1499-HYDRAULIC FAN SOLENOID CIRCUIT —
TEST
3 Turn the ignition off.
Disconnect the PCM harness connectors.
Measure the resistance of the (C240) Cooling Fan Solenoid Control circuit from the
fan harness connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 4
→ Repair the open in the (C240) Cooling Fan Control circuit.
No
4 Measure the resistance between ground and the (C240) Cooling Fan Control circuit.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (C240) Cooling Fan Control
→ Go To 5
No
5 Remove the ASD Relay and connect a jumper wire between the (K342) ASD Relay
Output terminal and the (A14) Fused B+ circuit to keep the ASD Output circuit
powered up for this step.
Connect another jumper wire to the (C240) Hydraulic Fan Solenoid Control circuit in
the PCM harness connector.
Momentarily connect the other end of the jumper wire to ground.
Did the solenoid actuate?
Yes → Go To 6
→ Replace the Hydraulid Radiator Fan.
No
NOTE: Remove the jumper wires before continuing.
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 2.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Continued
170
APPLICABILITY
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