B1352Body Control

Ignition Key-In Circuit Fault

B1352 indicates a fault in the ignition key-in (key present) switch circuit. The module cannot reliably detect whether the key is inserted, affecting chimes and lock logic.

🚗 Usually yes, but you may get warning chimes or lock behavior issues.

LOW

severity

🎯 Top Causes, Ranked by Likelihood

#1Faulty key-in switch$30-$150

40%

The switch in the ignition lock cylinder fails.

#2Wiring or connector fault$50-$200

30%

A broken wire disrupts the key-in signal.

#3Body module fault$150-$500

20%

The module input for the key-in signal fails.

🩺 Common Symptoms

Key-in chime always on or never sounds
Door lock logic issues
Key removal warning problems
Body code stored

💰 Repair Cost: DIY vs Shop

DIY Cost

$30-$200

Shop Cost

$100-$500

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose B1352

1Verify chime behavior with the key in and out

2Test the key-in switch for continuity

3Inspect the ignition switch wiring

4Replace the switch or repair wiring as needed

❓ Frequently Asked Questions

What does B1352 mean?

The module cannot reliably tell if the key is inserted, usually a bad key-in switch.

Can I drive with B1352?

Usually yes, though you may get nuisance chimes or lock behavior issues.

What causes B1352?

A failed key-in switch or wiring fault at the ignition.

🔗 Related Codes

B1342B1000B2205U0155