TM 5-3805-298-23-1
0063
Table 1. 1779 Fuel Rail #1 Pressure Valve Solenoid Diagnostic Codes - Continued.
063
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test for Shorted Engine
1779-6 Fuel Rail #1 Pressure
Control Wiring Harness.
Valve Solenoid Current
Above Normal - Continued
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right engine access panel
(WP 0348).
3. Disconnect connector E-C4
(WP 0012, Figure 10) from engine
ECM connector J2.
4. Disconnect connector E-C9
(WP 0012, Figure 35) from fuel
pump solenoid.
5. Using digital multimeter
Continuity - Replace engine control
(WP 0174), measure resistance
wiring harness (WP 0294).
between connector E-C4
Proceed to Test Step 3.
(WP 0012, Figure 10) terminal 25
No Continuity - Proceed to step 6.
and all other terminals in
connector E-C4 (WP 0012,
Figure 10).
6. Using digital multimeter
Continuity - Replace engine control
(WP 0174), measure resistance
wiring harness (WP 0294).
between connector E-C4
Proceed to Test Step 3.
(WP 0012, Figure 10) terminal 25
No Continuity - Replace fuel injection
and ground.
pump (WP 0203).
Proceed to Test Step 3.
0063-14
