Toyota Tacoma (2015-2018) Service Manual: Engine Unit

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 CL ...

Precaution

PRECAUTION HINT: Any digits beyond the 0.01 mm (1/1000 in.) place for standard, minimum and maximum values should be used as a reference only. When both standard and maximum or minim ...

Other materials:

Open in Occupant Classification ECU Battery Positive Line (B1794)
DESCRIPTION DTC B1794 is set when a malfunction is detected in the occupant detection ECU. DTC No. DTC Detections Conditions Trouble Areas B1794 Occupant detection ECU circuit malfunction Occupant detection ECU malfuncti ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: When replacing the skid control ECU (brake actuator assembly), sensor, etc., turn the ignition switch off. HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the s ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The certification ECU (smart key ECU assembly) and ECM control the vehicle engine immobiliser system functions. Engine immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a ...