TM 10-3930-675-20-1 0007 00-18 ENGINE FUEL INJECTOR CIRCUITS TROUBLESHOOTING - CONTINUED 0007 00 Table 5. Error Code 1315 - Injector Circuit Failure Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Error  Code  1315  -  Injector  Circuit  Failure  - Continued 4. Place ignition switch in OFF position and disconnect internal actuator harness from 15-pin   connector   and   from no. 2 injector solenoid. a. Measure   resistance   from 15-pin connector pin 3 to all other   pins   in   connector. Resistance should be greater than 100k ohms. a.  If    resistance    is    not    as specified,  repair  or  replace connectors (WP 0111 00). b. If   internal   actuator   harness requires  replacement,  notify SRA. b. Measure   resistance   from 15-pin  connector  pin  4  to all other pins in connector. Resistance should be greater than 100k ohms. a.  If    resistance    is    not    as specified,  repair  or  replace connectors (WP 0111 00). b. If   internal   actuator   harness requires  replacement,  notify SRA. 5. Place ignition switch to OFF position and, with rocker arm cover   removed,   disconnect internal actuator harness from injector solenoid. 6. Measure     resistance     from injector solenoid pin A to pin B. Resistance should be 0.5- 1.5 ohms. a.  If  resistance  is  as  specified, replace   engine   ECU   (WP 0078 00). b. If     resistance     is     not     as specified, notify DS Maintenance to replace injector. 7. Place ignition switch in OFF position and, with rocker arm cover   removed,   disconnect internal actuator harness from injector solenoid and remove injector  solenoid  wires  from solenoid. 8. Measure resistance from post to post on solenoid. Resistance should be 0.5-1.5 ohms. If resistance is not as specified, notify    DS    Maintenance    to replace injector.