Title: 19-06 - Autopilot Servo Wire Harness Installation
Plans, Wire Diagrams, and Documentation 12/28/22 - 0.5h 12/29/22 - 2.0h The plans for this step and the WH-0125 schematic provide a lot of information on how the autopilot and roll trim servos are wired. I traced each wire through the diagrams and compared the diagrams to the physical harness supplied with the kit. WH-00013 (Autopilot Harness) Pin Out: - - C405J Pin 1 (C410, 22 AWG, GRN) - - - C407P - - C403J Pin 1 - - - WH-00119, Pin 7 (C2285, 18 AWG, GRN) - - - Garmin GSA 28 Roll Servo, ID Strap 3/RS-232 Out 1 - - C405J Pin 2 (C411, 22 AWG, WHT/BLK) - - - C407P Pin 8 - - C405J Pin 3 (C412, 22S AWG, WHT/BLU) - - - C407P - - C403J Pin 3 - - - WH-00119, Pin 2 (F2287, 22 AWG, WHT/BLU) - - - Garmin GSA 28 Roll Servo, CAN Lo - - C405J Pin 4 (C412, 22S AWG, WHT/GRN) - - - C407P - - C403J Pin 7 - - - WH-00119, Pin 1 (F2287, 22 AWG, WHT) - - - Garmin GSA 28 Roll Servo, CAN Hi - - C405J Pin 5 (C414, 22 AWG, BLU) - - - C407P Pin 5 - - C403J Pin 5 - - - WH-00119, Pin 8 (C2284, 18 AWG, BLU) - - - Garmin GSA 28 Roll Servo, ID Strap 4/RS-232 In 1 - - C405J Pin 6 (C415, 18 AWG, RED) - - - C407P - - C403J Pin 6 - - - WH-00119, Pin 10 (C2282, 18 AWG, RED) - - - Garmin GSA 28 Roll Servo, Aircraft Power - - C405J Pin 7 (C413, 22 AWG, YEL) - - - C407P Pin 4 - - C403J Pin 4 - - - WH-00119, Pin 15 (C2277, 22 AWG, YEL) - - - Garmin GSA 28 Roll Servo, AP Disconnect - - C405J Pin 8 (C1029, 22 AWG, WHT/ORN) - - - C406J /C406P Pin 2 - - - Roll Trim (26 AWG, ORN) - - C405J Pin 9 (C1030, 22 AWG, WHT/GRN) - - - C406J /C406P Pin 3 - - - Roll Trim (26 AWG, GRN) - - C405J Pin 10 (C1031, 22 AWG, WHT) - - - C407P - - C403J Pin 2 - - - WH-00119, Pin 11 (C2281, 18 AWG, WHT) - - - Garmin GSA 28 Roll Servo, Trim In 1 - - C405J Pin 11 (C1032, 22 AWG, WHT) - - - C407P - - C403J Pin 10 - - - WH-00119, Pin 12 (C2280, 18 AWG, WHT/RED) - - - Garmin GSA 28 Roll Servo, Trim In 2 - - C405J Pin 12 (C1033, 22 AWG, WHT/BLU) - - - C406J /C406P Pin 6 - - - Roll Trim (26 AWG, BLU) Wire and Connector Labeling, and Testing 12/28/22 - 0.6h 12/29/22 - 0.5h Labelling the autopilot servo wire harness is similar to the other harnesses in the section. One difference is the ES-00045 (C406J). That molex connector does not come with any wires inserted into it, so it is not included in the bag with the WH-00013 harness. The ES-00045 is packaged with other miscellaneous electrical components including ring and spade connectors. I labeled the free ends of each wire with the names from the plans. This was a good time to also check the continuity of each wire prior to installation in the wing wire runs. [Label Maker, 1/4” and 3/8” Heat Shrink Tube Labels, Heat Gun, Multimeter] Wire Harness Installation 12/29/22 - 2.1h 12/30/22 - 1.4h Routing the autopilot wire harness (WH-00013) in the right wing didn't pose any real problems. The molex plug snaps into place, and then it's a matter of feeding the wires through the snap bushings to their final destination. The real work is building the other two molex plugs (C406J and C407P) from the free ends of the routed wires. I'm glad I took the time to study the wiring diagrams and label each wire at the free end earlier. That up-front effort saved a lot of potential time and confusion building out the molex plugs. The right wing wire harness (WH-00011) is installed after the autopilot harness is in place. It follows the same path as the autopilot wire harness and then continues to the wingtip rib. The red, yellow, and green wires for the nav/strobe light on my wire harness were too short to reach the wingtip connector (C401J). I can solve that issue by routing the wires along the spar for the entire length rather than jumping aft to the mid-rib pass-through at the ninth rib. There are pass-throughs by the spar for a couple ribs past the roll servo, but the three outboard ribs do not have pass through holes in them. I'll have to drill a hole and install a snap bushing in line with the other ribs to route the wires all the way to the wingtip connector.


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