B2336 Code: Meaning, Symptoms, Causes & Fix

Overview

Code B2336 indicates a fault in Mirror Switch Assembly Circuit Failure, typically within body electronics and comfort modules.

Symptoms

battery draw complaints
related warning lamp illuminated
module resets or glitches

Common causes

Disconnected or loose connector affecting mirror switch assembly circuit failure
Broken terminal inside harness
Connector pin damage/corrosion or harness stress near related components

How to diagnose B2336

Confirm B2336 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to mirror switch assembly circuit failure for obvious defects.
Use a continuity test from module pin to component to identify opens/high resistance.
Check for related DTCs to identify the root-cause chain before replacing parts.
After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code B2336

Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.

Can you drive with B2336?

Most vehicles can be driven short-term with B2336, but postpone heavy load/highway driving until repaired.

If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.

How to fix it (step-by-step)

Repair obvious wiring/connector faults first to prevent repeat parts replacement.
Address the root fault mode (open) in the mirror switch assembly circuit failure circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify B2336 remains cleared under the conditions that originally set the code.

Fix options

Clear corrosion and protect terminals.
Restore continuity and verify pin tension.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$160-$850

Common mistakes when diagnosing B2336

Replacing parts without verifying voltage, ground, and signal integrity first.
Ignoring related stored/pending codes that indicate upstream faults.
Skipping post-repair verification drive cycle and readiness checks.

B2336 in common vehicles

B2336 appears across makes such as Mazda, Subaru, Lexus, Jeep. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.

Frequently asked questions

What causes B2336?

B2336 is commonly set by open faults affecting mirror switch assembly circuit failure.

How much does it cost to fix B2336?

For B2336, repair costs are typically $160-$850 depending on exact root cause, labor rates, and part quality.

Can I clear B2336 without repair?

You can clear B2336 temporarily, but the code usually returns until the underlying fault is corrected.