Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: System Diagram

SYSTEM DIAGRAM

Transmitting ECU (Transmitter)

Receiving ECU

Signal

Communication Method

4 wheel drive control ECU

Skid control ECU (Brake actuator assembly)

  • Rear differential lock status signal
  • High-Low actuator fail*
  • 4WD status signal*
  • L4 status signal*

CAN communication system

Skid control ECU (Brake actuator assembly)

4 wheel drive control ECU

  • Wheel speed sensor error signal
  • Wheel speed signal
  • Vehicle speed signal
  • Vehicle speed status flag

CAN communication system

4 wheel drive control ECU

Combination meter assembly

  • Rear differential lock indicator light signal
  • Buzzer signal

CAN communication system

  • *: for 4WD
Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSION (a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are us ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure listed to troubleshoot the differential system (w/ Differential Lock). *: Use the Techstream. PROCEDURE 1 ...

Other materials:

Short in Front Passenger Side Squib Circuit (B1805/52-B1808/52)
DESCRIPTION The front passenger side squib circuit consists of the airbag sensor assembly and the instrument panel passenger without door airbag assembly. The circuit instructs the SRS to deploy when deployment conditions are met. These DTCs are recorded when a malfunction is detected in the fr ...

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT NOTICE: Do not try to remove the black nylon tube as it is welded to the fuel suction tube assembly (See page ). HINT: Perform "Inspection After Repairs" after replacing the fuel pump (See page ). PROCEDURE 1. INSTALL FUEL PUMP HINT: Perfo ...

Rear Differential Lock Control SW Stuck ON (P17CC)
DESCRIPTION This DTC is output when a malfunction of the differential lock switch is detected. DTC No. Detection Item DTC Detection Condition Trouble Area P17CC Rear Differential Lock Control SW Stuck ON ...

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