Toyota Tacoma (2015-2018) Service Manual: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK FOR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Central Gateway / Trouble Codes.
(e) Read the DTCs.
CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Central Gateway / Trouble Codes.
(e) Clear the DTCs.
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Central Gateway ECU (Network Gateway ECU)
DTC Code
Detection Item
See page
B1003
ECU Malfunction
...
Fail-safe Chart
FAIL-SAFE CHART
1. FAIL-SAFE FUNCTION
(a) When communication fails in any of the CAN bus lines (communication lines),
a fail-safe function(s) will operate. The fail-safe function that is specified ...
Other materials:
Dtc Combination Table
DTC COMBINATION TABLE
HOW TO INTERPRET COMMUNICATION DTCS (DTCS THAT START WITH U)
(a) If a CAN communication error cannot be reproduced, determine the suspected
malfunctioning part using the DTCs stored in ECUs that are connected to the CAN
buses by following the procedure below.
HINT:
Comm ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT ENGINE COOLANT
(See page )
2. INSPECT ENGINE OIL
(See page )
3. INSPECT BATTERY
(See page )
4. INSPECT SPARK PLUG
(See page )
5. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Remove the air cleaner filter element sub-assembly.
(b) Visu ...
Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION
The passenger side buckle switch circuit consists of the occupant detection ECU
and the front seat inner belt assembly RH.
DTC B1771 is recorded when a malfunction is detected in the passenger side buckle
switch circuit.
Troubleshoot DTC B1771 first when DTCs B1771 and B1795 are o ...
