TM 5-3805-296-23-1
0033
Table 1. 0274 Atmospheric Pressure Sensor Diagnostic Codes Continued.
033
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 3. Test for Shorted Basic
0274-04 Atmospheric
Engine Wiring Harness.
Pressure Sensor Voltage
1. Turn ignition switch and battery
Below Normal Continued
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector CL-C1
(WP 0012, Figure 45) from engine
ECM.
3. Disconnect connector CM-C1
(WP 0012, Figure 30) from engine
ECM.
4. Using digital multimeter
Continuity Replace basic engine
(WP 0540), test for continuity
wiring harness (WP 0251).
between connector CM-C1
Proceed to Test Step 4.
terminal 57 (WP 0012, Figure 30)
No Continuity Proceed to step 5.
and all other terminals
in connector CM-C1
(WP 0012, Figure 30).
5. Using digital multimeter
Continuity Replace basic engine
(WP 0540), test for continuity
wiring harness (WP 0251). Replace
between connector CM-C1
engine interface wiring harness
terminal 57 (WP 0012, Figure 30)
(WP 0211).
and all terminals in connector
Proceed to Test Step 4.
CL-C1 (WP 0012, Figure 45).
No Continuity Proceed to step 6.
6. Using digital multimeter
Continuity Replace basic engine
(WP 0540), test for continuity
wiring harness (WP 0251).
between connector CM-C1
Proceed to Test Step 4.
terminal 57 (WP 0012, Figure 30)
No Continuity Replace engine ECM
and ground.
(WP 0252).
Proceed to Test Step 4.
0033-9
