| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Combination Meter ECU Communication Stop Mode | Communication stop for "Combination Meter" is indicated on the "Communication Bus Check" screen of the GTS.
( 202405,999999,_57,_083091,_0694853,RM100000002LUHO,)
|
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Combination meter assembly main wire or connector ·
Power source circuit of combination meter assembly ·
Combination meter assembly ground circuit ·
Combination meter assembly |
For the circuit diagram of the combination meter assembly source refer to the meter/ gauge system.
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.
Inspect the fuses for circuits related to this system before performing the following procedure.
Before measuring the resistance of the CAN bus, turn the power switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
When disconnecting and reconnecting the auxiliary battery.
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Some parts must be initialized and set when replacing or removing and installing parts.
After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.
DTC check procedure: Turn the power switch on (IG) and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.
After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.
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.
Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.
Disconnect the cable from the negative (-) auxiliary battery terminal.
| *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 |
|---|---|---|
| G150-31 (CANH) - G150-14 (CANL) | Cable disconnected from negative (-) auxiliary battery terminal | 108 to 132 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check the combination meter assembly power source circuit
| Proceed to |
|---|
| OK |
| NG |
OK
NG