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.
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.
| *a | Front view of wire harness connector
(to Combination Meter Assembly) |
| *a | Front view of wire harness connector
(to Combination Meter Assembly) |
Disconnect the combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G18-19 (EP) - Body ground | Always | Below 1 Ω |
| G18-23 (ES) - Body ground | Always | Below 1 Ω |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G151-1 (EP) - Body ground | Always | Below 1 Ω |
| G151-2 (ES) - Body ground | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
|
*1: w/ Stop and Start System *2: w/o Stop and Start System |
||
| G18-38 (IG+) - Body ground | Ignition switch off | Below 1 V |
| Ignition switch ON | 10.5 to 16 V*1
11 to 14 V*2 |
|
| G18-22 (B) - Body ground | Ignition switch off | 11 to 14 V |
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
|
*1: w/ Stop and Start System *2: w/o Stop and Start System |
||
| G151-6 (IG+) - Body ground | Ignition switch off | Below 1 V |
| Ignition switch ON | 10.5 to 16 V*1
11 to 14 V*2 |
|
| G151-5 (B) - Body ground | Ignition switch off | 11 to 14 V |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (IG+ terminal) (w/ Stop and Start System) | B |
| NG (IG+ terminal) (w/o Stop and Start System) | C |
| NG (Other terminal) |
A
B
C