01 Fix That Check Engine Light Today: 5 Simple Sensor Cleaning… • 02 If You Can't Afford Repairs, You Can't Afford the Car • 03 How Often Should You Drive Your Car to Keep It in Good Shap… • 04 B0017 and B0018: Right Front or Passenger Frontal Deploymen… • 05 How to Diagnose a Car That Won't Start In 6 Easy Steps • 06 The Wankel Rotary Engine: Compact, Smooth, and Powerful • 07 How to Identify and Fix a Catalytic Converter Problem • 08 People Shocked After Mechanic Explains the Hidden Danger of… • 09 C0070 and C0075: Right Front ABS Solenoid #1 and #2 Circuit… • 10 Adapting to Autonomous Transmissions: How Self-Shifting Car… •

DTC codes / Volkswagen codes / P1436

P1436 · VolkswagenSecondary Air Injection Pump Relay Circuit Electrical Malfunction

P1436 on Volkswagen vehicles indicates that the engine control module has detected an electrical fault in the secondary air injection pump relay circuit, which prevents the pump from running during cold starts. The computer monitors the relay control circuit for expected voltage changes and flags this code when the circuit remains open, shorted, or draws abnormal current.

SystemPowertrain
Code typeVolkswagen specific
SeverityLow
Fix difficultyIntermediate
AreaAuxiliary emission controls

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage