Toyota Tundra Service Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Lighting System

DTC No.	Detection Item	Link
B1244	Light Sensor Circuit Malfunction
B124B	Automatic High Beam System
B124C	Automatic High Beam Camera
B2430	LED Headlight LH Circuit Malfunction
B2431	LED Headlight RH Circuit Malfunction
U023A	Lost Communication With Image Processing Module "A"

Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Pump Stuck On Bank1 (P2444-P2447)
DESCRIPTION Refer to P2440 (See page ). DTC No. DTC Detection Condition Trouble Area P2444 P2446 Secondary air pressure more than 3.0 kPa (23 mmHg) despite ECM commanding air pump to turn off (2 trip detection logic) Short in air pump circuit Open or short in pressure sensor circuit Pressure sensor ...

Toyota Tundra Owners Manual