P1769 — AG4 Transmission Torque Modulation Fault

What Does P1769 Mean?

P1769 is a manufacturer-specific diagnostic trouble code: AG4 Transmission Torque Modulation Fault. This code applies to OTHER, VOLKSWAGEN vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1769

⚠️ Check Engine Light (MIL) illuminated
⚠️ AG4 Transmission Torque Modulation Fault not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Faulty AG4 Transmission Torque Modulation Fault
🔍 Wiring or connector issue in AG4 Transmission Torque Modulation Fault circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P1769 mean?

P1769 indicates: AG4 Transmission Torque Modulation Fault. The vehicle's computer has detected that the AG4 Transmission Torque Modulation Fault is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1769?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1769 for extended periods may cause additional problems.

How much does it cost to fix P1769?

Repair costs for P1769 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect AG4 Transmission Torque Modulation Fault and related wiring
🔧 Replace faulty AG4 Transmission Torque Modulation Fault

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1769: AG4 Transmission Torque Modulation Fault