TM 5-3805-296-23-1
0040
Table 1. 1785 Intake Manifold Pressure Sensor Diagnostic Codes Continued.
040
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
3. Disconnect connector CM-C1
1785-03 Intake Manifold
(WP 0012, Figure 30) from engine
Pressure Sensor Voltage
ECM.
Above Normal Continued
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace engine ECM (WP 0252).
between connector CM-C1
Proceed to Test Step 7.
terminal 17 and terminal 15
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 30).
Replace basic engine wiring harness
(WP 0251).
Proceed to Test Step 7.
Test Step 7. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. At MSD, check for active
1785-3 Intake Manifold Pressure
diagnostic codes (WP 0008).
Sensor Voltage Above Normal
Becomes Inactive Proceed to step 3.
1785-3 Intake Manifold Pressure
Sensor Voltage Above Normal
Remains Active Repeat
troubleshooting from the beginning.
3. If removed, install splash shield
(Figure 3, Item 4), four bushings
(Figure 3, Item 3), washers
(Figure 3, Item 2), and bolts
(Figure 3, Item 1) on machine.
Figure 3. Splash Shield and Retaining Hardware.
0040
4. If lowered, install left frame access
plate (WP 0376).
5. Troubleshooting complete.