Checking components and wiring
Check the signal cable between engine control module (ECM) terminal #66 and system relay terminal 3 for an intermittent short-circuit to ground and remedy according to Short-circuit to ground, intermittent faults and for an intermittent open-circuit according to Open-circuit, intermittent faults .
Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000 .