L STARTER FAIL
(Caution)

The amber 'L STARTER FAIL' caution CAS message indicates the respective engine starter control valve has failed.

• The ECU has commanded the starter control valve solenoid to open and has not received open logic from the starter control valve position switch.

• None

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

1. If the starter does not engage at all and the 'L STARTER FAIL' CAS message is illuminated, assure that the 28 VDC Left Essential Bus 5 amp CB CB5-A2 (L ATS/HYD SOL) is set on the A35 Left-hand DC Power Center.
2. Verify the 28 VDC voltage is at the W4P6 pin A at the starter. (if not troubleshoot the power wire from the LH DCPC to the starter).
3. Ring through the starter solenoid, pins A to B, there should be continuity. If not replace the starter.
4. With W4P6 starter solenoid removed, check for a ground on pin B, should be open. Momentarily place the right hand starter in start, a ground should be supplied to pin B of W4P6. (if not, check the wiring to the FADEC. (Channel A pin 96 connector W6P2/A43J2) (Channel B pin 96 W6P3/A41J2).

Troubleshooting Continuation Both Sides:

1. Interrogate the MDC, look for and troubleshoot the following equations or MCID Codes related to the starter:
   Select an MDC Fault Code/Message:B3-302190 - STARTER CONTROL VALVE 4 [L ENG STARTER]B3-302192 - STARTER CONTROL VALVE 5 [L ENG STARTER]B3-302196 - STARTER CONTROL VALVE 7 [L ENG STARTER]B3-302200 - STARTER CONTROL VALVE 4 [R ENG STARTER]B3-302201 - STARTER CONTROL VALVE 5 [R ENG STARTER]B3-302203 - STARTER CONTROL VALVE 7 [R ENG STARTER]B3-302958 - ENGINE START COMMAND 4 [ENG CNTL PNL]B3-302960 - ENGINE CRANK COMMAND 4 [ENG CNTL PNL]B3-302970 - ENGINE START COMMAND 4 [ENG CNTL PNL]B3-302971 - ENGINE CRANK COMMAND 4 [ENG CNTL PNL]