Toyota Tacoma (2015-2018) Service Manual: Diagnostic Trouble Code Chart

Toyota Tacoma (2015-2018) Service Manual / Multiplex Communication / Lin Communication System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Main Body ECU (Multiplex Network Body ECU)

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

Certification ECU (Smart Key ECU Assembly)

DTC Code	Detection Item	See page
B2785	Communication Malfunction between ECUs Connected by LIN
B2786	No Response from Steering Lock ECU
B278C	Lost Communication with Power Source Control

No Response from Steering Lock ECU (B2786)

DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly) stops for 10 ...

Sliding Roof ECU Communication Stop (B1273)

DESCRIPTION This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear sub-assembly) and main body ECU (multiplex network body ECU) stops for 10 seconds or mo ...

Other materials:

Front Differential Oil Temperature Sensor Circuit Low (P17C7)
DESCRIPTION This DTC is output when a short to ground in the oil temperature sensor is detected. DTC No. Detection Item DTC Detection Condition Trouble Area P17C7 Front Differential Oil Temperature Sensor Circuit Low ...

Removal
REMOVAL PROCEDURE 1. DRAIN TRANSFER OIL 2. REMOVE FRONT PROPELLER SHAFT ASSEMBLY 3. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY 4. SUPPORT TRANSMISSION ASSEMBLY 5. REMOVE NO. 3 FRAME CROSSMEMBER SUB-ASSEMBLY 6. REMOVE REAR NO. 1 ENGINE MOUNTING INSULATOR 7. SUPPO ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...