STEP/SEQUENCE RESULT WHAT TO DO NEXT TM 9-2320-363-20-1 Section 4 TROUBLESHOOTING CHARTS D.  CHART -2 - ENGINE CRANKS BUT WILL NOT START (Cont'd) C 2-15 Check if Injector Drive or Return Lines are Shorted to Ground Disconnect the 5-way power Greater than Go to C2-16. harness connector at the ECM. or equal to 10,000 ohms Read resistance between socket or open on all readings. D of the 5-way, power harness connector to the following sockets Less than 10,000 ohms -A short to ground on wire where on the injector harness connectors: on any reading. resistance was less than  10,000 A, B, C, D, E, G, H, J, K, and L. ohms.  Repair short.  Then go to C2-30. C 2-16 Injector Drive Pulses Turn ignition off.   All tests pass. The problem does not appear Reconnect all ECM connectors. to be in the DDEC system.  Refer Remove rocket arm cover (s). to the engine Service Manual for Disconnect return wire from one other possible causes of a no- injector (return wire #619 or start condition. #620). Place a 6 Volt test light across the Light not Go to C2-11. injector return side (where wire flashing for one was just removed) and a good or more tests. ground. Crank engine and note both the Light and start Mechanical timing problem exists test light and whether start of of plunger motion (may be a TRS/SRS timing plunger motion coincides with don't coincide. adjustment).  Refer to the light. engine Service Manual for details. Reconnect the return wire. or assembly/installation section Repeat the above procedure with of this manual. all other injectors until all have been tested or until one test fails (no light or light and start of plunger motion don't coincide). C 2-17 Check DDEC Fuses Check both ECM power fuses Blown fuse(s) , Go to C2-28. or circuit breakers. or open circuit breaker(s). Both fuses or Go to C2-18. circuit breakers are okay. Change 3  3-345.71