DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual page 94

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DRIVEABILITY - DIESEL
P0382-GLOW PLUG 2 CONTROL CIRCUIT - OPEN CIRCUIT —
TEST
6
Turn the ignition off.
Remove Glow Plug Relay 2 from the PDC.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the Glow Plug Relay 2 Control circuit.
Is the resistance above 1000 ohms?
Yes → Go To 7
→ Repair the Glow Plug Relay 2 Control circuit for a short to ground.
No
7
Turn the ignition off.
Remove Glow Plug Relay 2 from the PDC.
Disconnect the ECM harness connectors.
Measure the resistance of the Glow Plug Relay 2 Control circuit.
Is the resistance below 10.0 ohms?
Yes → Go To 8
→ Repair the Glow Plug Relay 2 Control circuit for an open.
No
8
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
86
Continued
APPLICABILITY
All
All
All

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