Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Air Conditioning Unit

PTC Heater Circuit
DESCRIPTION PTC HTR heater relays are closed in accordance with signals from the air conditioning amplifier assembly and power is supplied to the quick heater assembly installed on the radiator h ...

Components
COMPONENTS ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

Other materials:

Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The battery voltage supplied through the buzzer is grounded inside the clearance warning ECU assembly using a pulsed digital pattern, producing sound ...

Lost Communication with Power Source Control (B278C)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area B278C An internal malfunction occurs in the certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) CAUTI ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN CHECKING FOR DTCS (a) When the cable is disconnected from the negative (-) battery terminal, the DTCs stored in the steering lock ECU (steering lock actuator or UPR bracket assembly) are cleared. Be sure to record any output DTCs immediately. (b) Normally, with ...

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