Toyota Camry (XV70): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*
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- *: w/ Smart Key System
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Horn System|
Symptom | Suspected Area |
Link |
|---|---|---|
|
Horn does not sound |
HORN fuse | - |
|
HORN relay |
| |
|
Horn button assembly |
| |
|
Spiral cable sub-assembly |
| |
|
Instrument panel junction block assembly |
| |
|
Harness or connector |
- | |
|
Horn sounds all the time |
HORN relay |
|
|
Horn button assembly |
| |
|
Spiral cable sub-assembly |
| |
|
Instrument panel junction block assembly |
| |
|
Main body ECU (Multiplex network body ECU) |
| |
|
Harness or connector |
- | |
| Low pitched horn operates but high pitched horn does not operate |
High pitched horn assembly |
|
|
Harness or connector |
- | |
| High pitched horn operates but low pitched horn does not operate |
Low pitched horn assembly |
|
|
Harness or connector |
- |
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Data List / Active Test
DATA LIST / ACTIVE TEST ACTIVE TEST HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive f
Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE
1. INSPECT HORN RELAY
*a Component without harness connected (HORN Relay)
(a) Measure the resistance according to the valu
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Components
COMPONENTS ILLUSTRATION
*1 LUGGAGE COMPARTMENT DOOR COVER
- - ILLUSTRATION
*A for LED Type Back-up Light
*B for Bulb Type Back-up Light
*1 BACK-UP LIGHT BULB
*2 REAR LIGHT ASSEMBLY
*3 REAR LIGHT CORD
*4 REAR L
System Diagram
SYSTEM DIAGRAM Luggage Compartment Door Opener System
Communication Table
Sender Receiver
Signal Line
Certification ECU (Smart Key ECU Assembly)*
Main Body ECU (Multiplex Network Body ECU)
Luggage compartment door lock assembly open operation signal
