Yes, DMM testing is pretty much done as you stated. However, while the DMM will provide a very high
impedance to the circuit tested in the Voltage range ( AC or DC ), the Ohms range does not supply the
same isolation and safety. Unless you are troubleshooting a specific issue and exercise appropriate
cautions and methods, use only the Voltage ranges.
A recap :
Testing for a (+) signal ( like the Fits' ignition wires ) :
DMM set to 20V DC, Black test lead on Chassis Ground, Red lead on suspect wire.
Testing for a (-) signal ( like the Fits' Horn wire ) :
DMM set to 20V DC, Red lead on +12V Constant, Black test lead on suspect wire.
Test for a Tach wire ( AC signal ) :
DMM set to 20 V AC, Black test lead on Chassis Ground, Red test lead on suspect wire. Typical Tach
wires will read between 1 and 6 V AC, depending on the vehicle and circuit used ( coil, F.I., etc ) and
will rise slightly with added RPM's.
Here are the necessary wire connections :
CN1 6 Pin Plug
1 White ACC Orange @ Ignition Switch Harness
2 Yellow Starter Pink @ Ignition Switch Harness
3 Green IGN Yellow @ Ignition Switch Harness
4 Black Chassis Ground Chassis Ground
5 Red x 2 +12V Constant White @ Ignition Switch Harness
6 GREEN / WHITE (+) Parking Lights Gray (+) @ dash fuse box, GREEN / WHITE 49 pin plug, pin 42
CN2 20 Pin Plug
1 Blue not used or optional if using the wired in relay
2 ORANGE / Black (-) P.L. Reminder Gray (-) @ headlight switch, BLACK/ White 12 pin plug, pin 11
3 GREEN / WHITE (-) Parking Lights not used
4 Lt Blue (-) E-Brake ORANGE (-) @ PARKING BRAKE SWITCH
5 RED / Black (-) Starter Clutch bypass circuit
6 Lt Blue/White (+) Brake Lt. Green (+) @ dash fuse box, GREEN / WHITE 49 pin plug, pin 14
7 Green not used
8 Violet/Black not used - supplied by Blade
9 WHITE/ Black used for ACC2 relay - Purple wire
10 RED / White not used - supplied by Blade
11 Black not used
12 BROWN / White not used
13 Orange not used
14 Pink not used
15 ORANGE / White not used
16 Yellow/Black ( AC ) Tach lt. grn, tan, blue, or red (or brn, red, blu, yel) ac fuel injector harness on driver side of engine
17 White (-) Horn Orange (-) @ horn switch, White 20 pin plug, pin 1 optional
18 Gray/Black (-) Hood might be supplied by Blade, depends on Fit. Test.
19 Violet not used
20 Brown not used
CN3 20 Pin Blade Plug
WHITE/ BLACK jump to Blade Blue / YELLOW
WHITE/ RED - UNLOCK (-) FROM DRIVER DOOR to Fit 12 Pin Plug, Pin 1 White (-) At fusebox
WHITE - LOCK (-) FROM DRIVER DOOR to Fit 12 Pin Plug, Pin 8 Green (-) At fusebox
ORANGE / BLACK - KEY DATA to Fit Green 7 Pin Plug, Pin 3 Lt Green (DATA) @ Ignition switch
ORANGE - SWC to Fit Green 7 Pin Plug, Pin 4 Green (DATA) @ Ignition switch
BLUE/RED - GROUND (-) Chassis Ground
BLUE / YELLOW - DOORLOCK jump to Blade WHITE/ Black
CN4 6 Pin Plug
1 Empty
2 Violet/White not used - handled by Blade
3 ORANGE / Black not used
4 Blue not used - handled by Blade
5 Blue/Black not used - handled by Blade
6 Empty
Extra relay for ACC2 :
Relay Purple wire to CM6200 CN2 Pin 9 WHITE/ Black (-) 250 mA Accessory Output
Relay Red wire to Fit White @ Ignition Switch Harness
Relay Blue wire to Fit Red @ Ignition Switch Harness
Notes :
Blade is flashed with DL HA2 firmware.
All connections are soldered.
CM6200 GREEN / WHITE loop wire is intact.
CM6200 Jumper 3 set to (+) Parking Light Output
Tach Mode and successful Tach Learn
If the Fit does not have a Factory Hood Pin, the Compustar supplied hood pin is installed & used.
Soldering is fun!