TM 10-3930-675-20-1 0018 00-5 ENGINE POSITION SENSOR CIRCUITS TROUBLESHOOTING - CONTINUED 0018 00 Table 1. Error Code 1115 - Engine Position Sensor Circuit Failure Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Error   Code   1115   -   Engine   Position   Sensor Circuit Failure - Continued 13.Reconnect sensor harness to engine position sensor. Check for open circuit: If     engine     harness     requires replacement, notify SRA. a.  Measure   resistance   from pin 49 to pin 50 of engine harness   connector.   Resis- tance should be 1000-2000 ohms. b. Measure    resistance    from pin 47 to pin 48 of engine harness   connector.   Resis- tance should be 1000-2000 ohms. Table 2. Error Code 1121 - Engine Position Sensor Circuit Failure Troubleshooting Procedures. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Error   Code   1121   -   Engine   Position   Sensor Circuit Failure 1.  Ensure that ignition switch is in  OFF  position.  Disconnect engine  harness  from  engine position   sensor   (WP   0093 00). 2.  Inspect   engine   harness   and engine position sensor connectors for dirty, corroded,  bent,  broken,  and pushed back or extended pins. Clean and repair connector(s) as required (WP 0111 00). 3.  Check   engine   harness   and engine position sensor 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). 4.  Check   for   short   circuit   to ground: If resistance is not as specified, replace  engine  position  sensor (WP 0093 00). a.  Measure   resistance   from engine position sensor connector pin A to engine block   ground.   Resistance should be greater than 100k ohms.