1991 INTL REST light gone crazy

[Dynomite]

Originally Posted by Dynomite

Very easy.......especially if you have a 1/4 socket wrench with 3 inch extension and a 13mm and 10mm 1/4 drive socket. You just have to remove battery and battery platform (4 - 10mm bolts/screws). You can see in the photo you have plenty room. On the battery platform one lower 10mm screw is a bit tight but you can get at it with a 10mm flex head ratchet or just a plain 10mm open end box wrench.

The Side Panel with 3 #30 Torx and two 10 mm bolts (the lower 10mm bolt you just loosen a bit in the gap) is easy to remove as well.

You will get a kick out of this.........and a BIG thanks to Marc Haibeck for answering my questions

This from Marc.......(edited a bit)
For the 1991 through 1993 the Air Bag Sensors do not have to be grounded to work in a crash....they DO need to be attached to the Frame Rails however. The Grounding requirement (Code 16 and Code 26) of the Air Bag Sensors on the 1990 was set up to assure the sensors were attached to the Frame Rails. If the bolts were removed from the sensors the sensor would pass as air bag deployable but would not actually deploy the air bag for obvious reasons. This explains why I got NO INFL REST warning on the panel when I totally removed the 1991 Sensor from the Frame Rail in my test.

I am now thinking the Air Bag Sensors on the 1990 ZR-1 will function and Deploy the Air Bag even if not grounded. The 1990 Air Bag Sensors will only appear not grounded/not connected on the panel as INFL REST indicating/suggesting the Air Bag Sensors are not installed when in fact they ARE Installed. To get rid of that INFL REST Indication on the Panel (as well as the Red Seat Belt Indication) requires the Air Bag Sensors be Re-Grounded. I am not going to jar the Air Bag Sensor to see if the Air Bags Deploy to test that theory.

If any of the listed faults 21 - 26 for the 1991-1993 were detected in a self test the INFL REST will appear on the 1991-1993 panel. These faults are listed for the 1991-1993 in the ALDL Fault Code Sticky above this technical section.

21 Steering Column Resistance Too High
22 Steering Column Resistance Too Low]
23 Steering Column Circuit Voltage Too High
24 Steering Column Circuit Voltage Too Low
25 Short to Battery in Steering Column
26 Open in Steering Column

Now for the 1994-1995 since two air bags are used has different codes and there is NO SIR diagnostic terminal as indicated.
The 1994-1995 design requires a TECH 1 diagnostics because the data is sensitive as a result of Government Regulations. On the 1994-1995 ALDL Code Reader when used with Adapter I have noted SIR (the RED BUTTON) is NOT used See Item #3 ALDL Fault Code Reader/Eraser. All other Codes are readable using the 94'-95' Adapter with the ALDL Code Reader.

Marc Haibeck ALDL Connector Functional Description