Toyota Tacoma (2015-2018) Service Manual: High Beam Main Switch
Headlight Relay
Inspection
INSPECTION
PROCEDURE
1. INSPECT HEADLIGHT RELAY
(a) Check the resistance.
(1) Using an ohmmeter, measure the resistance between the terminals.
Standard:
Tester Connec ...
Components
COMPONENTS
ILLUSTRATION
*A
for Double Cab
*B
for Access Cab
*1
AUTO HIGH BEAM SWITCH
*2
COWL SIDE TRIM ...
Other materials:
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 ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Blind Spot Monitor System
DTC Code
Detection Item
See page
C1A45
Vehicle Speed Sensor
C1A47
Steering Angle Sensor
C1AB0
Short ...
Open in Pump Motor Circuit (C1251)
DESCRIPTION
The motor relay (semiconductor relay) is built into the master cylinder solenoid
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1251
...
