OBD Auto Configuration Throttle Input Not Present Bank 2
What it means
P26FF stands for Auto Configuration Throttle Input Not Present Bank 2. P26FF is a P code, so the fault sits in the engine, transmission and emissions systems. For P26FF, the second digit places it in computer output circuits. For P26FF, work through the cause list below, cheapest checks first.
What to check first
For P26FF, check the bank 2 reading against the other bank before buying parts, since if only one side is out of range that side is the fault.
Check these first
- P26FF: Faulty sensor or actuator in the control circuit
- P26FF: Wiring, connector, or fuse problem for the affected output
- P26FF: Low or unstable system voltage from the battery or charging system
- P26FF: Failed PCM/ECM or a software error
- P26FF: Poor ground connection for the control module
What to do next
P26FF belongs to the computer output circuits system. These are the general steps for P26FF, and the exact cause on your vehicle can differ.
- P26FF: Verify battery voltage and charging system health first
- P26FF: Read all related module codes with an OBD-II scanner
- P26FF: Inspect wiring, connectors, and grounds for the affected circuit
- P26FF: Test the sensor or actuator with live data and actuation commands
- P26FF: Check for PCM software updates or TSBs before replacing modules
Look up another code
Enter a full code or a symptom. Press / to search. How to read a code
Type a code above, or start from a symptom or a common code.
Updated
Generic SAE J2012 definition. Last updated 2026-08-30.