DTC B1982 Source/Battery Voltage High. Buick Park Avenue 1999

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1999 🢒 Park Avenue 🢒 DTC 🢒 DTC B1982 Source/Battery Voltage High

The battery voltage is supplied to the SBM at connector C1 terminal C9.

The SBM determines if the voltage is within a valid operating range.

DTC B1982 sets when the battery voltage is above 15.5 volts.

•	DTC B1982 stores in the SBM memory.

•	The SBM will not respond to any manual or memory inputs when the voltage is greater than 15.5 volts.

•	No driver warning message displays for this DTC.

DTC B1982 clears when the battery voltage is above 15.0 volts.

•	The DTC disables the setting of most other SBM DTCs.

•	DTC B1982 may set if the vehicle is placed on a battery charger set on boost or fast charge.

Step	Action	Value(s)	Yes	No
1	Did you preform the Body Control Module Diagnostic System Check?	--	Go to Step 2	Go to Diagnostic System Check - Body Control System
2	Connect a scan tool to the data link connector (DLC). Turn the ignition switch to OFF. Select DATA from the SBM DATA LIST. Is the voltage within the specified range?	9-15 V	Go to Step 5	Go to Step 3
3	Disconnect the SBM connector C1. Measure the voltage between the SBM connector C1 terminal C9 and ground. Is the voltage within the specified range?	9-15 V	Go to Step 5	Go to Step 4
4	Repair the charging system. Is the repair complete?	--	Go to Diagnostic System Check - Body Control System	--
5	Clear the DTC. Cycle the ignition. Is the DTC still present?	--	Go to Step 6	Go to Diagnostic System Check - Body Control System
6	Replace the SBM. Refer to Body Control Module Replacement Reprogram the SBM. Refer to Body Control Module (BCM) Programming/RPO Configuration Is the repair complete?	--	Go to Diagnostic System Check - Body Control System	--