Toyota Tacoma (2015-2018) Service Manual: Lost Communication with ECM (U0100,U0142,U0155)

Toyota Tacoma (2015-2018) Service Manual / Air Conditioning / Air Conditioning System(for Automatic Air Conditioning System) / Lost Communication with ECM (U0100,U0142,U0155)

DESCRIPTION

DTC No.	DTC Detecting Condition	Trouble Area
U0100	No communication with ECM	CAN communication system ECM
U0142	No communication with main body ECU	CAN communication system Main body ECU (multiplex network body ECU)
U0155	No communication with combination meter	CAN communication system Combination meter assembly

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

HINT:

Refer to CAN Communication System (See page ).

END

Air Inlet Damper Position Sensor Circuit (B1432/32)

DESCRIPTION This sensor detects the position of the air inlet damper and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is built into the No. 1 air ...

Air Outlet Damper Control Servo Motor Circuit (B1443/43)

DESCRIPTION This No. 1 air conditioning radiator damper servo sub-assembly (for mode switching) is controlled by the air conditioning amplifier assembly and moves the mode damper to the desired p ...

Other materials:

Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION In this circuit, the meter CPU receives engine coolant temperature signals from the ECM using the CAN communication system (CAN V1 Bus). The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM. WIRING DIAGRAM CAUTION / NOTIC ...

Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION This circuit sends a signal to the stereo component amplifier assembly to mute noise. Because of that, the noise produced by changing the sound source ceases. If there is an open in the circuit, noise can be heard from the speakers when changing the sound source. If there is a sho ...

Removal
REMOVAL PROCEDURE 1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package) 2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 3. DRAIN ENGINE COOLANT 4. REMOVE RADIATOR GRILLE (See page ) 5. REMOVE V-BANK COVER SUB-ASSEMBLY 6. REMOVE RADIATOR SUPPORT TO FRAME SEAL 7. R ...