Notes On Intermittents

WARNING: This page is about a different car, the 1988 Cadillac Seville and 1988 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

DO NOT attempt to diagnose Code EO53 unless there are complaints of stumble, stall, miss or other driveability conditions that could be caused by loss of spark or fuel. Code EO53 can be caused by: loss of ground on circuit No. 453. Loss of distributor reference signal on circuit No. 430. Loss of battery power to "B+" terminal of distributor. Ignition switch contact timing.

Fig 1: Schematic, Code EO53, Distributor Signal Interrupt

Fig 2: Flow Chart, Code EO53, Distributor Signal Interrupt

Fig 3: Flow Chart, Code EO53, Distributor Signal Interrupt