B1600 Fault Code — Ignition Key Not Detected (PATS/Immobiliser)

Severity: 🔴 Critical — stop driving immediately

Immobiliser/transponder system not reading the key — car may not start.

Common Symptoms

Common Causes

How We Fix It

Key transponder test, key reader replacement, immobiliser programming.

Frequently Asked Questions

What does B1600 mean?

B1600 (Ignition Key Not Detected (PATS/Immobiliser)) means Immobiliser/transponder system not reading the key — car may not start. Common symptoms include engine cranks but won't start, immobiliser light flashing, security warning.

How much does B1600 repair cost in Hyderabad?

At GarageNation Hyderabad, we diagnose B1600 with dealer-grade scan tools and provide a fixed quote before any work begins. Call +91 8106316369 for an estimate.

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