TM 5-3805-296-23-1
0025
Table 1. 0172 Intake Manifold Air Temperature Sensor Diagnostic Codes Continued.
025
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
0172-03 Intake Manifold Air
Test Step 3.Test Intake Air Temp
Temperature Sensor Voltage
Sensor Signal Circuit Function.
Above Normal or Inlet Air
1. Turn ignition switch and battery
Temperature Parameter Is
disconnect switch to OFF position
40 Continued
(TM 5-3805-296-10).
2. Connect jumper wire between
terminal 1 and terminal 2 of
connector CM-C5 (WP 0012,
Figure 18).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
172-4 Intake Manifold Air
4. At MSD, check for active
Temperature Sensor Voltage Below
diagnostic code 172-4 Intake
Normal Becomes Active Replace
Manifold Air Temperature Sensor
intake air temperature sensor
Voltage Below Normal (WP 0008).
(WP 0219).
Proceed to Test Step 5.
172-4 Intake Manifold Air
Temperature Sensor Voltage Below
Normal Not Active Proceed to Test
Step 4.
Test Step 4. Test Basic Engine
Wiring Harness for High Resistance
or Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Do not remove jumper wire from
terminal 1 and terminal 2
of connector CM-C5
(WP 0012, Figure 18).
3. Disconnect connector CM-C1
(WP 0012, Figure 30) from engine
ECM.
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 5.
terminal 56 and terminal 30
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 30).
Replace basic engine wiring harness
(WP 0251).
Proceed to Test Step 5.
0025-4
