Toyota Corolla Cross: Entire Combination Meter does not Operate
DESCRIPTION
This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
- Inspect the fuses of circuits related to this system before performing the following procedure.
- When replacing the combination meter assembly, update the ECU security key.
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PROCEDURE
|
1. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Disconnect the combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|
I4-1 (EP) - Body ground |
Always | Below 1 Ω |
|
I4-2 (ES) - Body ground |
Always | Below 1 Ω |
| (c) Measure the voltage according to the value(s) in the table below.
Standard Voltage: |
Tester Connection | Switch Condition |
Specified Condition | |
I4-6 (IG+) - Body ground |
Ignition switch off |
Below 1 V | |
Ignition switch ON*1 |
11 to 14 V | |
Ignition switch ON*2 |
10.5 to 16 V | |
I4-5 (B) - Body ground |
Ignition switch off |
11 to 14 V |
- *1: for HEV Model
- *2: for Gasoline Model
|
 |
|
*a | Front view of wire harness connector
(to Combination Meter Assembly) | | |
| OK |
.gif) | REPLACE COMBINATION METER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
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DIAGNOSIS SYSTEM
NOTICE:
The following communication bus check screen is provided only as an example.
This screen differs from the actual screen for this vehicle.
Description of "Communication Bus Check" Screen
HINT:
The ECUs and sensors that are normally connected to the CAN commun
