Entire Combination Meter does not Operate
This circuit is the power source circuit for the meter. 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 an IG power source mainly used for signal transmission. The constant power source is mainly used as a backup power source for the meter CPU, however, it is also used for CAN communication. If a voltage of 12 V is not applied to terminal IG2 when the ignition switch is turned to ON, the indicator will not operate.
WIRING DIAGRAM
PROCEDURE
INSPECT COMBINATION METER ASSEMBLY
(a) Disconnect the E2 connector. |
 |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
|---|---|---|
E2-24 (ES) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
|---|---|---|
E2-13 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
E2-1 (B2) - Body ground |
Always |
11 to 14 V |
E2-14 (B) - Body ground |
Always |
11 to 14 V |
*1 |
Front view of wire harness connector (to Combination Meter Assembly) |
| OK | .gif) | REPLACE COMBINATION METER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.