How is fault code B1828 fixed?

Split the circuit at the actuator to find out which side is at fault. - Press the release and listen or feel for solenoid movement at the latch - Check the fuse and, where fitted, swap the release relay with an identical one - Measure the voltage at the actuator connector during a release command - If voltage is present but nothing moves, test the solenoid resistance and replace it - If no voltage arrives, check the module output and the wiring for an open or short - Flex the loom between the body and the lid while operating the release - Free or replace the latch if it is binding, then repair the harness or replace the actuator

Wiper Rear High Limit Input Circuit Short To Battery

Jump to the fix

Severity

Medium

Can I keep driving?

Usually drivable, but get it diagnosed without delay.

First step

Split the circuit at the actuator to find out which side is at fault.

BBody
1Manufacturer-specific
8Body
28Sequence number

What does it mean?

B1828 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Trunk/Gate Release Control Circuit .

Symptoms

Trunk or tailgate will not open electrically and needs the key or the manual release
No click or movement from the release solenoid
Release works intermittently, often better in dry or warm weather
Fuse for the release circuit blows repeatedly
Code returns every time a release is commanded

Likely causes

Trunk or tailgate release solenoid open, seized or internally shorted
Broken conductor in the flexible loom between the body and the lid or gate
Corroded connector inside the trunk lid, where water often collects
Control wire shorted to ground or to battery voltage
Blown fuse or failed relay in the release circuit
Release latch mechanically jammed so the solenoid stalls and draws high current
Module output driver damaged by an earlier short

How to fix it

Press the release and listen or feel for solenoid movement at the latch
Check the fuse and, where fitted, swap the release relay with an identical one
Measure the voltage at the actuator connector during a release command
If voltage is present but nothing moves, test the solenoid resistance and replace it
If no voltage arrives, check the module output and the wiring for an open or short
Flex the loom between the body and the lid while operating the release
Free or replace the latch if it is binding, then repair the harness or replace the actuator

Codes From the Same System

All Fault Codes

Related Similar Codes

This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.