History Code 33 - Steering Diode Shorted In Arming Sensor: Description

At TURN-ON tests, Diagnostic Energy Reserve Module (DERM) monitors voltage at 36-Volt Loop Reserve (36VLR) output before this output begins to change. If diode in arming sensor connected to terminal "B" is shorted, IGNITION 1 voltage will be present at 36VLR output (terminal A2) as soon as ignition is turned on. If DERM detects this ignition voltage (+/-2 volts) 3 ignition cycles in a row, History Code 33 will be set.