TM 5-3805-296-23-1
0027
Table 1. 0190 Engine Speed Sensor Diagnostic Code Continued.
027
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
4. Inspect crankshaft speed timing
Sensor Damaged Replace
0190-08 Engine Speed
sensor for damage and improper
crankshaft speed timing sensor
Sensor Abnormal
installation (WP 0222).
(WP 0222).
Frequency, Pulse Width, or
Proceed to Test Step 9.
Period Continued
Sensor Bracket Bent or Damaged
Replace crankshaft speed timing
sensor (WP 0222).
Proceed to Test Step 9.
Sensor Bracket Loose or Sensor
Installed Improperly Properly install
crankshaft speed timing sensor
(WP 0222).
Proceed to Test Step 9.
Sensor Loose in Housing Bore
Inspect for missing or damaged O-ring
seals. Replace seals as necessary
(WP 0222).
Proceed to Test Step 9.
No Problem Found Proceed to
step 5.
5. Inspect harness connector CM-C6
Wiring Harness/Connector Damaged
(WP 0012, Figure 20) for damage
Replace basic engine wiring harness
IAW Electrical General
(WP 0251).
Maintenance Instructions
Proceed to Test Step 9.
(WP 0540).
No Problem Found Proceed to Test
Step 2.
Test Step 2. Test Voltage to
Crankshaft Speed Timing Sensor.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. Using digital multimeter
Voltage Greater Than 3.0 V Proceed
(WP 0540), test for voltage
to Test Step 3.
between connector CM-C6
Voltage 2.5 0.5 V Proceed to step 3.
terminal 1 (WP 0012, Figure 20)
Voltage Less than 2.0 V Proceed to
and ground.
Test Step 6.
3. Using digital multimeter
Voltage Greater Than 3.0 V Proceed
(WP 0540), test for voltage
to Test Step 4.
between connector CM-C6
Voltage 2.5 0.5 V Proceed to Test
terminal 2 (WP 0012, Figure 20)
Step 5.
and ground.
Voltage Less than 2.0 V Proceed to
Test Step 7.
0027-3
