Toyota Tacoma 2015-2018 Service Manual: High Pitched Horn
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE RADIATOR GRILLE
Click here .gif)
2. REMOVE HIGH PITCHED HORN ASSEMBLY
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(a) Disconnect the connector. |
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(b) Remove the bolt and high pitched horn assembly.
Inspection
INSPECTION
PROCEDURE
1. INSPECT HIGH PITCHED HORN ASSEMBLY
(a) Check the operation.
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(1) Apply battery voltage to the terminal 1 and body ground, and check that the high pitched horn assembly sounds. Text in Illustration
OK:
If the result is not as specified, replace the high pitched horn assembly. |
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Installation
INSTALLATION
PROCEDURE
1. INSTALL HIGH PITCHED HORN ASSEMBLY
(a) Install the high pitched horn assembly with the bolt.
Torque:
20 N·m {199 kgf·cm, 14 ft·lbf}
(b) Connect the connector.
2. INSTALL RADIATOR GRILLE
Click here .gif)
Horn
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Horn Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HORN RELAY ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below ...
Other materials:
Power Supply Drive Circuit (C1257)
DESCRIPTION
The motor relay (semiconductor relay) is built into the hydraulic brake booster
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1257
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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 Connection
Specified Condition
3-5
10 kΩ or higher
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Installation
INSTALLATION
PROCEDURE
1. INSTALL INSTRUMENT PANEL SUB-ASSEMBLY
(a) Engage the 5 guides to install the instrument panel sub-assembly.
(b) Engage the clamps and connect the connectors.
(c) Install the nut <G>.
(d) Install the 8 bolts <A>.
(e) Install the 2 bolts <B> or 2 bo ...
