TM 5-3805-298-23-1
0065
Table 1. 1797 Fuel Rail Pressure Sensor Diagnostic Codes - Continued.
065
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1797-3 Fuel Rail Pressure
Test Step 2. Test for Shorted Engine
Sensor Signal Voltage Is
Control Wiring Harness.
1. Turn ignition switch and battery
Above Normal or the
disconnect switch to OFF position
Voltage Is Shorted High -
(TM 5-3805-298-10).
Continued
2. Remove right engine access panel
(WP 0348).
3. Disconnect connector E-C2
(WP 0012, Figure 31) from fuel rail
pressure sensor.
4. Disconnect connector E-C4
(WP 0012, Figure 10) from engine
ECM connector J2.
5. Using digital multimeter
Continuity - Replace engine control
(WP 0174), test for continuity
wiring harness (WP 0294).
between connector E-C4
Proceed to Test Step 4.
(WP 0012, Figure 10) terminal 51
No Continuity - Proceed to Test Step 3.
and all other E-C4 terminals.
Test Step 3. Test for Open Engine
Control Wiring Harness.
1. Connect jumper wire between
terminal 3 and terminal 2 of
connector E-C2 (WP 0012,
Figure 31).
2. Using digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Replace fuel rail pressure sensor
between connector E-C4
(WP 0244).
(WP 0012, Figure 10) terminal 51
Proceed to Test Step 4.
and terminal 40.
Resistance Greater Than 5.0 Ohms -
Replace engine control wiring harness
(WP 0294).
Proceed to Test Step 4.
Test Step 4. Verify Malfunction Is
Resolved.
1. Ensure all harness connectors are
connected.
2. Install right engine access panel
(WP 0348).
0065-3