Code 34 (Chart 2), Open In Ignition 1 Feed To Deployment Loop: Description
WARNING: This page is about a different car, the 1991 Geo Storm, 1991 Geo Metro, 1990 Geo Storm, and 1990 Geo Metro. However, it is still accessible from the selected car via links, so may be relevant.
At TURN-ON, DERM monitors voltage at SENSE LOW input terminal No. A6 for 500 milliseconds. DERM expects voltage to be 28-59 percent of IGNITION 1 voltage before 36VLR output is charged. If IGNITION 1 circuit from SIR fuse to arming sensor is open or IGNITION 1 diode in arming sensor is open, voltage at SENSE LOW input terminal No. A6 will be less than 4.6 volts, and Code 34 will set.