Toyota Tacoma (2015-2018) Service Manual: Inspection
INSPECTION
PROCEDURE
1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
|
Component without harness connected
(Headlight Dimmer Switch Assembly)
|
Standard Resistance:
Light Control Switch (w/o DRL OFF function)
Tester Connection
|
Switch Condition
|
Specified Condition
|
18 (T) - 15 (EL)
|
Light control switch OFF
|
10 kΩ or higher
|
19 (H) - 15 (EL)
|
10 kΩ or higher
|
18 (T) - 15 (EL)
|
Light control switch in tail position
|
Below 1 Ω
|
18 (T) - 15 (EL)
|
Light control switch in head position
|
Below 1 Ω
|
19 (H) - 15 (EL)
|
Below 1 Ω
|
Light Control Switch (w/ DRL OFF function)
Tester Connection
|
Switch Condition
|
Specified Condition
|
18 (T) - 15 (EL)
|
Light control switch DRL-OFF
|
10 kΩ or higher
|
19 (H) - 15 (EL)
|
10 kΩ or higher
|
20 (A) - 15 (EL)
|
10 kΩ or higher
|
18 (T) - 15 (EL)
|
Light control switch in tail position
|
Below 1 Ω
|
18 (T) - 15 (EL)
|
Light control switch in head position
|
Below 1 Ω
|
19 (H) - 15 (EL)
|
Below 1 Ω
|
20 (A) - 15 (EL)
|
Light control switch in AUTO position
|
Below 1 Ω
|
20 (A) - 15 (EL)
|
Light control switch in DRL position
|
Below 1 Ω
|
Dimmer Switch
Tester Connection
|
Switch Condition
|
Specified Condition
|
16 (HL) - 15 (EL)
|
Dimmer switch in low position
|
Below 1 Ω
|
14 (HU) - 15 (EL)
|
10 kΩ or higher
|
14 (HU) - 15 (EL)
|
Dimmer switch in high position
|
Below 1 Ω
|
14 (HU) - 15 (EL)
|
Dimmer switch in high flash position
|
Below 1 Ω
|
17 (HF) - 15 (EL)
|
Below 1 Ω
|
Turn Signal Switch
Tester Connection
|
Switch Condition
|
Specified Condition
|
12 (TR) - 15 (EL)
|
Neutral
|
10 kΩ or higher
|
11 (TL) - 15 (EL)
|
10 kΩ or higher
|
13 (CR) - 15 (EL)
|
10 kΩ or higher
|
12 (TR) - 15 (EL)
|
Right turn
|
Below 1 Ω
|
13 (CR) - 15 (EL)
|
Right turn fully
|
Below 1 Ω
|
11 (TL) - 15 (EL)
|
Left turn
|
Below 1 Ω
|
13 (CR) - 15 (EL)
|
Left turn fully
|
Below 1 Ω
|
Fog Light Switch
Tester Connection
|
Switch Condition
|
Specified Condition
|
9 (BFG) - 8 (LFG)
|
Fog light switch off
|
10 kΩ or higher
|
9 (BFG) - 8 (LFG)
|
Fog light switch in front position
|
Below 1 Ω
|
If the result is not as specified, replace the headlight dimmer switch
assembly.
|
|
REMOVAL
PROCEDURE
1. REMOVE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
(See page )
2. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY
3. REMOVE HEADLIGHT DIMMER SWITCH ASSEMBLY
(a) Disconnect ...
INSTALLATION
PROCEDURE
1. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY
(a) Engage the 3 claws to install the headlight dimmer switch assembly.
(b) Connect the connector.
2. INSTALL WINDSHIELD WIPER S ...
Other materials:
Low Beam Headlight Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the low beam headlights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing
the following inspection procedure.
If the main body ECU (multipl ...
Theft Deterrent System Presence Detection (B279C,B279C95)
DESCRIPTION
If an ECM that is incompatible with the engine immobiliser system is installed,
the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
B279C*1
An ECM that is incom ...
Automatic High Beam Camera (B124C)
DESCRIPTION
The main body ECU (multiplex network body ECU) detects a high beam headlight
illumination request signal of the automatic high beam system from the forward recognition
camera
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...