DTC B1982 Device Power 1 Circuit High. Cadillac Eldorado 1999

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 1999 🢒 Eldorado 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 DTC B1982 Device Power 1 Circuit High

The battery voltage is supplied to the IPC connector C1 terminals A1 and B1.

When the IPC is awake, the voltage at the IPC connector C1 terminals A1 and B1 are measured every 300 ms.

This DTC indicates a circuit malfunction is preventing the alternator from charging.

The battery voltage measured at the IPC connector C1 terminals A1 and B1 is more than 15.5 V for 4 monitoring cycles.

•	The IPC displays the BATTERY VOLTAGE HIGH message on the driver message center.

•	No loss of the class 2 serial data DTCs are set.

The DTC may set if the vehicle is connected to a battery charger set on fast or boost charge.

Step	Action	Value(s)	Yes	No
1	Did you perform the Diagnostic System Check?	--	Go to Step 2	Go to Diagnostic System Check - Audible Warnings
2	Ensure that the engine is running. Use a J 39200 in order to inspect the CLUSTER fuse in the rear compartment fuse block for the voltage at one of the fuse test terminals. Is the voltage greater than the specified value?	15.5 V	Go to the Generator Electrical Test in Engine Electrical	Go to Step 3
3	Replace the IPC. Is the repair complete?	--	Go to Diagnostic System Check - Audible Warnings	--

Step

Action

Value(s)

Yes

Did you perform the Diagnostic System Check?

Ensure that the engine is running.
Use a J 39200 in order to inspect the CLUSTER fuse in the rear compartment fuse block for the voltage at one of the fuse test terminals.

Is the voltage greater than the specified value?

15.5 V

Go to the Generator Electrical Test in Engine Electrical

Replace the IPC.

Is the repair complete?