Toyota Camry (XV70): 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 junction block assembly.
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(b) Reconnect the instrument panel junction block assembly connectors.
(c) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connectors disconnected.
|
Terminal No. (Symbol) |
Wiring Color | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|---|
|
MB-11 (GND1) - Body ground |
- | Ground |
Always | Below 1 Ω |
|
MB-31 (BECU) - Body ground |
- | Battery power supply |
Always | 11 to 14 V |
|
MB-30 (ACC) - Body ground |
- | ACC power supply |
Ignition switch ACC |
11 to 14 V |
|
MB-30 (ACC) - Body ground |
- | ACC power supply |
Ignition switch off |
Below 1 V |
|
MB-32 (IG) - Body ground |
- | IG power supply |
Ignition switch ON |
11 to 14 V |
|
MB-32 (IG) - Body ground |
- | IG power supply |
Ignition switch off |
Below 1 V |
(d) Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.
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(e) Measure the voltage and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|---|
|
K52-15 (FUSW) - Body ground |
G - Body ground |
Fuel lid opener switch signal |
Fuel lid opener switch pushed |
Below 1 V |
|
Fuel lid opener switch not pushed |
11 to 14 V | |||
|
K51-24 (FUEL) - Body ground |
G - Body ground | Fuel lid open request signal |
| 11 to 14 V → Below 1 V → 11 to 14 V |
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a
Fuel Lid Opener does not Operate
DESCRIPTION When the fuel lid opener switch is pushed for 0.8 second, the main body ECU (multiplex network ECU) turns on the FUEL OPN relay, and the fuel lid lock with motor assembly opens the fuel li
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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 suspect
Components
COMPONENTS ILLUSTRATION
*1 FRONT DISC BRAKE ANTI-SQUEAL SHIM KIT
*2 FRONT DISC BRAKE CYLINDER ASSEMBLY
*3 FRONT DISC BRAKE PAD
*4 FRONT FLEXIBLE HOSE
*5 FRONT NO. 1 DISC BRAKE ANTI-SQUEAL SHIM
*6 FRONT NO. 2 DISC BRAKE ANTI-SQUEAL SHIM
