Dodge ZB 2005 Service Manual page 1262

P1282-FUEL PUMP/SYSTEM RELAY CONTROL CIRCUIT —
TEST
3 Ignition on, engine not running.
Using a 12-volt test light connected to ground, probe the (F202) Fused Ignition
Switch Output circuit in the Fuel Pump Relay connector.
Does the test light illuminate brightly?
Yes → Go To 4
No
4 Turn the ignition off.
Disconnect the PCM harness connectors.
Measure the resistance of the (K31) Fuel Pump Relay Control circuit from the Fuel
Pump Relay connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
No
5 Measure the resistance between ground and the (K31) Fuel Pump Relay Control
circuit at the PDC.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (K31) Fuel Pump Relay Control
No
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
→ Repair the open or short to ground in the (F202) Fused Ignition
Switch Output circuit. Inspect the related fuse and repair as
necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Repair the open in the (K31) Fuel Pump Relay Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Go To 6
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
DRIVEABILITY - GAS
141
Continued
APPLICABILITY
All
All
All
All