overhead console upgrade?

[hunter01]

Hey Rick my books says:

"An innacurate DIC (Driver Information Center) temperature display indicates a high resistance condition within the system"

The sensor is behind the grille.

Ambient Air Temperature Sensor Resistance

Temp Resistance
MIN MAX
81 F 11150 ohms to 11250 ohms
92 F 8450 ohms to 8550 ohms
107 F 5950 ohms to 6050 ohms
119 F 4450 ohms to 4550 ohms
131 F 3450 ohms to 3550 ohms
140 F 2450 ohms to 2550 ohms

The compass should be recalibrated when changing consoles.

Electronic Compass Calibration

Important: Before calibrating the compass, drive the vehicle to an area that is magnetically clean, and free of large metallic objects.

1. Turn ON the ignition
2. Press the MODE button in order to advance to the COMP/TEMP mode
3. Simultaneously depress and hold the US/MET and MODE buttons untill a C is displayed., in approximately 10 seconds.
4. Release both buttons.
5. Drive the vehicle in circles at a speed of less than 8 km/h (5mph) untill the C is replaced by a proper vehicle heading. The calibration procedure is now complete.

Compass Magnetic Variation Adjustment

Important: Magnetic variation adjustments are required when the compass displays a constant error in heading. Variation is the difference between magnetic north and true north due to geographical location.

1. Locate your geographic location. Refer to the variation zone map.
2. Turn ON the ignition with the engine OFF.
3. Press the MODE button in order to advance to the COMP/TEMP mode.
4. With the DIC in the COMP/TEMP mode, simultaneously depress and hold the MODE and US/MET buttons untill VAR CAL is displayed in approximately 5 seconds.
5. Release both buttons.
6. Press the US/MET button in order to advance to the proper zone number.
7. Press the MODE button in order to enter and set the zone number.

This last step requires the map from the book which I haven't yet figured out how to post, however this is a minor adjustment. Here in NY the declination is about 13 deg. The zones are numbered from 1 to 15 with western Canada being zone 1 and northeastern Canada being zone 15. Texas is zone 6.

[TonyMazz]

Originally Posted by BlazerLT

Don't you have a trip computer on your dash?

yep but I also want....

Average Economy

The Average Fuel Economy (AFE) is calculated as the ratio between the accumulated distance since the last AFE reset and the accumulated fuel consumption since the last AFE reset (Distance/Fuel Used)


Instant Fuel Economy

Instantaneous fuel economy is the ratio between the accumulated distance gathered for the last 1 second and the accumulated fuel used for the last 1 second .

Range

Range is calculated as the product of the Average Fuel Economy (AFE) multiplied by the amount of fuel remaining in the tank (AFE x Remaining Fuel). When a range of less than 40 miles is calculated, the low fuel range mode is entered

Fuel Used

The driver information center calculates and displays the total amount of fuel used since the last FUEL USED reset. Fuel used is the amount of fuel used since the last reset, accumulated from liters or fuel over real time converted to gallons or liters as required. Press the MODE and the ENGLISH/METRIC buttons simultaneously while in the FUEL USED display in order to reset the FUEL USED accumulator to zero


Average Speed

Average speed is the ratio of the accumulated distance over accumulated ignition on-time. Both values are calculated since the last average speed reset. On-time is measured from the time when the ignition switch is turned to the ON position to when the ignition switch is turned OFF of all of the ignition cycles since the last reset. Press the MODE and the ENGLISH/METRIC buttons simultaneously in order to reset the average speed to zero

Compass Display

With the long overhead console the compass display circuitry is entirely contained within the driver information display module. With the short overhead console the compass display circuitry is mounted externally, to the right of the driver information display module


Temperature Display

The driver information center applies voltage to the ambient air temperature sensor. The ambient air temperature sensor is a thermistor.

As temperature increases, the resistance decreases. As temperature decreases, the resistance increases. As the resistance of the ambient air temperature sensor increases, the driver information center senses a larger voltage reduction across the ambient air temperature sensor. This condition indicates a lower temperature.

As a resistance of the ambient air temperature sensor decreases, the driver information center senses a smaller voltage reduction across the ambient air temperature sensor. This condition indicates a higher temperature.

If the temperature is below 3°C (38°F) , the temperature digits will toggle between displaying the outside temperature and ICE for 2 minutes . This condition will occur once per ignition cycle.

The driver information center uses the vehicle speed signal from the vehicle control module in order to determine when to update the temperature display with a new outside air temperature reading. The vehicle must be driven more than 16 km/h (10 mph) before the temperature display will be updated


If it's all a matter of snapping one in........and simple wire hook up or two...

[rlith]

Let me put this issue to rest. Adding the trip version of the display to 96 to current is easy. (If anyone want it I have the wiring for it). The problem with the 95 programming (ecm under the hood, it will not work at all with the odbi.5 system under the dash) is the class 2 serial data protocol. The problem is the protocol is slightly different on the 95 then it is on the 96 and up and the display unit does not know how to interpret it. So when you hook up the trip display, it goes on from 20-30 seconds until it realized it can read it correctly. Now if you were to reflash the 95 ecm with the 96 programming it would work (but your injectors wouldn't)..

[chcknugget]

Originally Posted by rlith

Let me put this issue to rest. Adding the trip version of the display to 96 to current is easy. (If anyone want it I have the wiring for it). The problem with the 95 programming (ecm under the hood, it will not work at all with the odbi.5 system under the dash) is the class 2 serial data protocol. The problem is the protocol is slightly different on the 95 then it is on the 96 and up and the display unit does not know how to interpret it. So when you hook up the trip display, it goes on from 20-30 seconds until it realized it can read it correctly. Now if you were to reflash the 95 ecm with the 96 programming it would work (but your injectors wouldn't)..

Be careful before installing a "mode" computer into a 96 vehicle. I tried it and it wasn't compatible. I have not found one case were a "mode" console to work in a 96 vehicle. Let me know if you do...

[rlith]

I've done a few into the 96's and 97s without issue...

[chcknugget]

I don't know why it didn't work for me... I tried 2 97 bravada console and a console from a 98 blazer. I've settled on an on/off console off of a 99 blazer.

I tried to get the serial data signal from pin 11 on the black connector and then tried the data signal under the dash. Now I'm curious and wonder what I did wrong! The instant I plugged the on/off console in it worked, so I assume the problem was the serial data signal.

[saxman06]

To calibrate the temp and compass, just hold down both of the buttons on the left side of the display simultaneously for a few seconds. That's how I did it in my 96 LT. I recently removed it to install a sunroof, so I can't offer much more help.

[maddog245]

Originally Posted by rlith

I've done a few into the 96's and 97s without issue...

Were does the yellow wire go?

[rlith]

Originally Posted by maddog245

Were does the yellow wire go?

Serial data...I don't know where my diagrams for the ecm went off to. Just stop by the dealer and ask them to print them out.. It's how I got main