← View Generic B1133 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2017 Toyota CAMRY

B1133: B1133: Body Control Module (BCM) - Exterior Lighting Circuit Malfunction

on 2017 Toyota CAMRY

Fix Cost

$50 - $200

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2017 Toyota

CAMRY

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Important for 2017 Toyota CAMRY Owners

Before starting repairs, verify which engine your 2017 Toyota CAMRY has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B1133 Mean on 2017 Toyota CAMRY?

The Body Control Module (BCM) has detected a malfunction in the exterior lighting circuit, which may be causing issues with the headlights, taillights, or other exterior lights.

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Symptoms

• Dim or inoperative exterior lights
• faulty headlight aim
• or warning lights on the dashboard.

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Common Causes

• Faulty exterior light bulbs
• wiring or connector issues
• BCM failure
• or a problem with the lighting circuit relay.

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How to Fix B1133 on 2017 Toyota CAMRY

Check and replace any faulty exterior light bulbs. Inspect and repair any damaged or corroded wiring or connectors. Update the BCM software if necessary. Replace the BCM if it's faulty.

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Need Maintenance Info for Your CAMRY?

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Parts for 2017 Toyota CAMRY

Exterior light bulb(s) Shop ↗ Wiring harness Shop ↗ Connector(s) Shop ↗ BCM software update Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B1133

B1131 Sequential Code

💡 Why These Codes Are Related:

• Similar Issues: Same root cause or component failure
• Related Problems: Often occur together due to system interactions
• Sequential Codes: Progressive failure stages or multiple sensors
• Same System: Components within the same automotive system