Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT INDICATOR LIGHT

(a) Inspect the 4HI Indicator Light:

(1) Start the engine.

(2) Change the 4WD control switch from 2WD to 4H.

(3) Check the 4HI indicator light.

OK:

The 4HI indicator light comes on or the 4HI indicator light comes on after it is blinking.

If the result is not as specified, inspect the switch, four wheel drive control ECU and transfer shift actuator assembly. If there is a malfunction, inspect the switch, ECU, transfer shift actuator and A.D.D. actuator. If the system is normal, there may be a malfunction in the CAN communication system or combination meter. In this case, first check the CAN communication system (See page the combination meter (See page the combination meter (See page ). Then check the combination meter (See page ) and touch select 2- 4 and high-low system (See page  ). ) and touch select 2- 4 and high-low system (See page (b) Inspect the 4LO Indicator Light: ).

(b) Inspect the 4LO Indicator Light:

(1) Start the engine.

(2) Move the shift lever to N.

(3) Change the 4WD control switch from 2WD to 4H. Then change it from 4H to 4L after the 4HI indicator light illuminates (after 4H switch completion).

(4) Check the 4LO indicator light.

OK:

The 4LO indicator light comes on or the 4LO indicator light comes on after it is blinking.

If there is a malfunction, inspect the switch, ECU and actuator. If the system is normal, the combination meter may be malfunctioning.

2. INSPECT TRANSFER POSITION SWITCH

(a) Remove the transfer position switch with its connector still connected (See page ).

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F15-2 (2-4) - Body ground

Ignition switch ON

2WD position

Below 1 V

Ignition switch ON

4H position

Below 1.5 V

Ignition switch ON

4L position

10.5 to 14 V

F15-3 (LO) - Body ground

Ignition switch ON

2WD position

10.5 to 14 V

Ignition switch ON

4H position

Below 1.5 V

Ignition switch ON

4L position

Below 1 V

Text in Illustration

*a

Component with harness connected

(Transfer Position Switch)

Components
COMPONENTS ILLUSTRATION ILLUSTRATION ...

Removal
REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (for Automatic Air Conditioning System) (See page ) 2. REMOVE INTEGRATION PANEL SUB-ASSEMBLY (for Manual Cooler System) (See page ...

Other materials:

Rear Cross Traffic Alert Buzzer
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL REAR CROSS TRAFFIC ALERT BUZZER (a) Engage the clamp to install the rear cross traffic alert buzzer. (b) Connect the connector. 2. INSTALL QUARTER INSIDE TRIM BOARD LH (for Double Cab) (See page ) 3. ...

Disposal
DISPOSAL CAUTION / NOTICE / HINT CAUTION: Before performing pre-disposal deployment of any SRS component, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment. PROCEDURE 1. PRECAUTIO ...

Transfer Shift Motor Control Circuit Circuit Open (P17A8)
DESCRIPTION This DTC is output when an open circuit in the transfer shift motor drive circuit is detected. DTC No. Detection Item DTC Detection Condition Trouble Area P17A8 Transfer Shift Motor Control Circuit Circuit Open ...

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