Toyota Sienna Service Manual: Horn relay
INSPECTION
1. INSPECT HORN RELAY
- Remove the horn relay from the instrument panel J/ B.
- Measure the horn relay continuity.
Standard
Horn system
PARTS LOCATION
PROBLEM SYMPTOMS TABLE
HORN SYSTEM
...
Low pitched horn
COMPONENTS
REMOVAL
1. REMOVE FRONT BUMPER COVER
ET-3
2. REMOVE LOW PITCHED HORN
Disconnect the connector.
Remove the bolt and horn.
INSPECTION
1. INSPECT LOW PITCHED HORN
...
Other materials:
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION: Wait for 90 seconds after disconnecting the cable
to prevent the airbag working.
2. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
Disengage the 4 clips and remove the instrument
cluster finish panel sub-assembly.
...
Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
See page EM-26
2. SECURE ENGINE (See page EM-37)
3. REMOVE GENERATOR ASSEMBLY (See page CH-17)
4. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
(See page AC-227)
5. REMOVE NO. 1 ENGINE FRONT MOUNTING
BRACKET LH (See page EM-42)
6. REMOVE NO. 2 IDLER PU ...
Terminals of ECU
1. CENTER AIRBAG SENSOR ASSEMBLY (w/ Side
Airbag)
2. CENTER AIRBAG SENSOR ASSEMBLY (w/o Side
Airbag)
...
