TM 10-3930-675-20-1
0018 00-7
ENGINE POSITION SENSOR CIRCUITS TROUBLESHOOTING - CONTINUED
0018 00
Table 2. Error Code 1121 - Engine Position Sensor Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1121 - Engine Position Sensor
Circuit Failure - Continued
10.Check engine harness and
engine ECU for dirt or
moisture in or on connectors
and for missing or damaged
connector seals.
Remove dirt and moisture from
connector. Replace missing or
damaged connector seals (WP
0111 00).
11.Check for short circuit to
ground:
If engine harness requires
replacement, notify SRA.
a. Measure resistance from
engine harness connector
pin 47 to engine block
ground. Resistance should
be greater than 100k ohms.
b. Measure resistance from
engine harness connector
pin 50 to engine block
ground. Resistance should
be greater than 100k ohms.
>100K OHMS
USE TEST LEAD KIT P/N 3822758