TM 10-3930-675-24-1
ENGINE ELECTRONIC CONTROL UNIT (ECU) (794) TROUBLESHOOTING - CONTINUED
0018 00
Table 1. Error Code 1187 - Sensor Voltage Supply Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1187 - Sensor Voltage Supply Failure 3. Measure voltage from oil If voltage is not as specified,
- Continued.
pressure/temperature sensor replace oil pressure/temperature
connector pin A to pin B. sensor (WP 0094 00).
Voltage should be less than
4.5V.
<4.5V
USE TEST LEAD
KIT P/N 3822758
4. Place ignition switch in OFF
position and disconnect sensor
harness connector from engine
ECU.
a. Inspect engine harness and Clean and repair connector(s) as
sensor connector for dirty, required (WP 0113 00).
corroded, bent, broken,
pushed back, and extended
pins.
b. Check engine harness and
Remove dirt and moisture from
engine ECU connector for
connector. Replace missing or
damaged connector seals (WP
dirt or moisture in or on
0113 00).
connector and for missing or
damaged connector seals.
0018 00-2
