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CRJ

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Depress and hold both the "Mode and Set" button in whilst starting the vehicle for addional intersting display information very handy stuff
to be able to access.

Enjoy CJ
 

WAGON MAN

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As explained in this thread by Doctor Bob

Doctor Bob said:
for all those wanting to know the "secret"

ok once in diag mode the displays are as follows


between each display press mode


Software Version
GM Part Number
Trip Computer Switch Voltage
Mode button (hold for more than 2 seconds) 3.9 to 4.28v
Set Button (hold for more than 2 seconds) 4.28 to 4.75v
Up Button 3.26 to 3.55v
Down Button 2.43 to 2.71v
Battery Voltage
Fuel Calibration Part Number
Fuel Tank Level 0 to 255 steps
Instrument Cluster Temperature (approximately ambient)
ADC Brake Reading .8 to 2.8v
Passenger Seat Voltage Differential (not applicable)
Rear Seat Voltage Differential (not applicable)
Rear Seat 2 Voltage Differential (not applicable)
Rear Seat 3 Voltage Differential (not applicable)
Remaining Fuel +/- 5 litres
Instantaneous Fuel
Coolant Temp
Speed
Tacho
Park Lamps
Odometer Status
Trouble Codes 1 indicates the corresponding code is set
31 29 28 27 26 25 24 23 22 21 20 19 18 17 16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Full Test
Temp & Fuel to Half
Tacho to 3000rpm
Speedo to 100km/h
Chime at 1kHz
LED's driven by serial data illuminate
All LCD segments illuminate

these pretty well explain themselves

Rob
 
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