Toyota Camry (XV70): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom | Suspected Area |
Link |
|---|---|---|
|
Wireless control function and entry function do not operate |
Check for DTCs |
|
|
Lighting system (Int) (Front door courtesy switch circuit) | ||
|
Lighting system (Int) (Rear door courtesy switch circuit) | ||
|
Power door lock control system | ||
|
Wave interference | ||
|
Transmitter battery | ||
|
Electrical key transmitter sub-assembly | ||
|
Wire harness or connector | ||
|
Check connector connection condition | ||
|
Electrical key and tire pressure monitoring system receiver assembly | ||
|
Certification ECU (Smart key ECU assembly) | ||
|
Main body ECU (Multiplex network body ECU) | ||
|
B code registration failed | ||
|
Wireless control function does not operate but entry function operates |
Electrical key transmitter sub-assembly |
- |
|
Only answer-back function does not operate properly |
Check customize setting |
|
|
Perform operation check | ||
|
Lighting system (Int) (Door unlock detection switch circuit) | ||
|
Smart key system (for Entry Function) | ||
|
Main body ECU (Multiplex network body ECU) | ||
|
Lighting system (Ext) (Hazard warning switch circuit) | ||
|
Only automatic lock function does not operate properly |
Perform operation check |
|
|
Lighting system (Int) (Front door courtesy switch circuit) |
| |
|
Lighting system (Int) (Rear door courtesy switch circuit) |
| |
|
Main body ECU (Multiplex network body ECU) |
- | |
|
Only illuminated entry function does not operate |
Perform operation check |
|
|
Lighting system (Int) |
| |
|
Main body ECU (Multiplex network body ECU) |
- | |
| Only door ajar warning buzzer function does not operate |
Wireless door lock buzzer |
|
|
Only panic alarm function does not operate |
Perform operation check |
|
|
Lighting system (Int) (Interior lights) |
| |
|
Lighting system (Ext) (Headlights, taillights, hazard warning lights) |
| |
|
Theft deterrent system (Vehicle horns, Security horn) |
| |
|
Main body ECU (Multiplex network body ECU) |
- |
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Terminals Of Ecu
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel jun
SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE VACUUM SWITCHING VALVE (for Active Control Engine Mount System)
Click here 2. REMOVE V-BANK COVER SUB-ASSEMBLY
Click here
3. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH Click here
4. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH
Click here
Open in One Side of Bus 3 Branch Line
DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in
