ELECTRICAL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
FUEL INJECTION PUMP CIRCUIT TEST - CONTINUED
Reconnect fuel pump (WP 0164 00).
Expected Results. Measured voltage is between 22 and 27 VDC with no suspected intermittent problems at this
If results are OK, verify wire on P40:6 (-) Pump Supply has continuity to negative battery.
(a) Wiring harness and voltage supply to fuel pump control are correct. Problem is in fuel injection pump
or there is communication problem between ECM and fuel injection pump. Refer to CAN Data Link
Circuit Test in this work package.
(b) If CAN data link is correct, problem is in fuel injection pump. Replace fuel injection pump (WP 0164
00) and verify problem has been eliminated.
N OT E
Voltage Load Protection Module (VLPM) should also be replaced when fuel injection pump is replaced.