Toyota Venza: Power Source Circuit
DESCRIPTION
1. w/o Multi-information Display
(a) This circuit is the power source circuit for the accessory meter assembly. This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is a power source mainly used for signal transmission.
HINT:
If the accessory meter assembly displays "1:00" when the ignition switch is turned off, then to ON again, the B terminal has a malfunction.
The maximum clock assembly margin of error is -4 to 4 seconds per day when the temperature is between -20°C (-4°F) and 60°C (140°F).
2. w/ Multi-information Display
(a) This circuit is the power source circuit for the accessory meter assembly. This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is a power source mainly used for signal transmission.
HINT:
If the accessory meter assembly displays "1:00" when the ignition switch is turned off, then to ON again, the +B terminal has a malfunction.
The maximum clock assembly margin of error is -4 to 4 seconds per day when the temperature is between -20°C (-4°F) and 60°C (140°F).
WIRING DIAGRAM
1. w/o Multi-information Display
2. w/ Multi-information Display
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR |
(a) w/o Multi-information Display
|
(1) Disconnect the F2 connector. |
|
(2) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F2-1 (B) - Body ground |
Always |
11 to 14 V |
|
F2-13 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F2-12 (E) - Body ground |
Always |
Below 1 Ω |
|
*1 |
Front view of wire harness connector (to Accessory Meter Assembly) |
(b) w/ Multi-information Display
|
(1) Disconnect the F2 and F5 connectors. |
|
(2) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F5-1 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
F5-9 (+B) - Body ground |
Always |
11 to 14 V |
|
F2-1 (B) - Body ground |
Always |
11 to 14 V |
|
F2-13 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F2-12 (E) - Body ground |
Always |
Below 1 Ω |
|
F5-16 (SGND) - Body ground |
Always |
Below 1 Ω |
|
*1 |
Front view of wire harness connector (to Accessory Meter Assembly) |
|
*2 |
Front view of wire harness connector (to Accessory Meter Assembly ) |
| OK | .gif) |
REPLACE ACCESSORY METER ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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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 ...
0.132