garajizOBD-II code · manufacturer-specific
P1606
ECM/TCM Serial Communication Error
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1606 mean?
P1606 is defined as “ECM/TCM Serial Communication Error”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Kia: Chassis Accelerator Sensor Signal Circuit Fault
- Citroen, Diğer, Peugeot: ECM Control Relay O/P Circuit Malfunction
- Jaguar: ECM Control Relay Output Circuit
- Volkswagen: Rough Road Spec Engine Torque ABS ECU Electrical Malfunction
- Buick, Cadillac, Chevrolet, GM, GMC, Oldsmobile, Saturn: Serial Communication Problem With Device 6
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This page is general information; an exact diagnosis needs measurements and a technician’s check.