Electrical Check

Check fuse. Check chassis ground and harness. Perform continuity checks with ohmmeter between controller and servo. Check the Mode Control Switches by replacing with a known good switch or test for continuity as listed in Mode Control Switch Continuity table.

MODE CONTROL SWITCH CONTINUITY

Set/Coast Switch		O = Open, C = Closed
Normal
Position Slider		Off
1-2		O
1-3		O
1-4		O
2-3		O
2-4		O
3-4		O
Normal
Position Slider		Off
1-2		O
1-3		O
1-4		O
2-3		O
2-4		O
3-4		O
Normal
Position Slider		R/A
1-2		O
1-3		O
1-4		C
2-3		O
2-4		C
3-4		O
Depressed
Position Slider		Off
1-2		O
1-3		O
1-4		O
2-3		C
2-4		O
3-4		O
Depressed
Position Slider		Off
1-2		O
1-3		O
1-4		O
2-3		C
2-4		C
3-4		C
Depressed
Position Slider		R/A
1-2		C
1-3		C
1-4		C
2-3		C
2-4		C
3-4		C

Fig 1: Mode Control Switch Wire Identification