INSTALLATION
PROCEDURE
1. INSTALL HORN BUTTON ASSEMBLY
(a) Check that the ignition switch off.
(b) Check that the cable is disconnected from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(c) for Single Type:
(1) Engage the wire harness clamp. |
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(2) Connect the airbag connector to the horn button assembly.
NOTICE:
When connecting any airbag connector, take care not to damage the airbag wire harness.
(3) Push in the airbag connector lock to install the airbag connector.
NOTICE:
Securely lock the airbag connector lock.
(4) Connect the horn connector to the horn button assembly.
(d) for Dual Type:
(1) Engage the wire harness clamp. |
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(2) Connect the 2 airbag connectors to the horn button assembly.
NOTICE:
(3) Push in the 2 airbag connector locks to install the 2 airbag connectors.
NOTICE:
Securely lock the airbag connector lock.
(4) Connect the horn connector to the horn button assembly.
(e) Push the horn button assembly to engage the hooks carefully and install the horn button assembly. NOTICE:
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2. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
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NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
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3. INSPECT HORN BUTTON ASSEMBLY
(a) Make sure that the horn sounds.
If the horn does not sound, inspect the horn system.
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4. PERFORM DIAGNOSTIC SYSTEM CHECK
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5. INSPECT SRS WARNING LIGHT
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Toyota CH-R Service Manual > Airbag System: Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
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FUNCTION OF SRS WARNING LIGHT
(a) Primary check
(1) Turn the ignition switch off. Wait for at least 2 seconds, then turn the
ignition switch ON. The SRS warning light comes on for approximately 6 seconds and
diagnosis of the airb ...
Toyota CH-R Service Manual > Lighting System: Interior Light Auto Cut Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls operation of the DOME
CUT relay in order to supply power to the interior lights. When the battery saving
function operates while the interior lights are on, the main body ECU (multiplex
network body ECU) opens the DOME CUT re ...