Toyota Tundra Service Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

LIN Communication System

DTC Code	Detection Item	See page
B1206	P/W Master Switch Communication Stop
B1273	Sliding Roof ECU Communication Stop
B2321	Driver Side Door ECU Communication Stop
B2322	Front Passenger Side Door ECU Communication Stop
B2325	LIN Communication Bus Malfunction

Toyota Tundra Service Manual > Power Tilt And Power Telescopic Steering Column System: IG Power Source Circuit
DESCRIPTION When the ignition switch is turned to on, the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. The multiplex tilt and telescopic ECU also receives ignition switch signals via this circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT HINT: Inspect ...

Toyota Tundra Owners Manual