Symptom:
*CHECKING THE FUEL INJECTION PUMP
POSSIBLE CAUSES
CHECKING THE FUEL INJECTION PUMP
TEST
ACTION
APPLICABILITY
1
NOTE: This test should be performed before replacing the ECM during fault
code diagnostics.
NOTE: This test checks for shorted circuits internal to the Fuel Injection
Pump assembly.
Turn the ignition off.
Disconnect the Fuel Injection Pump 10-way harness connector.
NOTE: The following resistance measurements are performed on the Fuel
Injection Pump 10-way harness connector (pump side). Resistance on these
measurements should be greater than 100.0 ohms each.
Measure the resistance between cavity 1 and cavities 4, 5, 6, 7, 8, 9, 10 and case
ground.
Measure the resistance between cavity 4 and cavities 5, 6, 8, 9, 10 and case ground.
Measure the resistance between cavity 5 and cavities 6, 7, 8 and case ground.
Measure the resistance between cavity 6 and cavities 7, 8, 9 and 10.
Measure the resistance between cavity 7 and cavities 8, 9, 10 and case ground.
Is the resistance below 100.0 ohms for any of the measurements?
All
Yes
→
Replace the Fuel Injection Pump Assembly in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Test Complete.
248
DRIVEABILITY - DIESEL