Toyota Corolla Cross: Combination Meter ECU Communication Stop Mode
DESCRIPTION
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.
Click here
|
- Combination meter assembly main line or connector
- Power source circuit of combination meter assembly
- Combination meter assembly ground circuit
- Combination meter assembly
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic
laws.
NOTICE:
- 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.
Click here
- Before measuring the resistance of the CAN bus, turn the ignition 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 1
minute or more before measuring the resistance.
- After the ignition switch is turned off, there may be a waiting time before
disconnecting the negative (-) auxiliary battery terminal.
Click here
- When disconnecting and reconnecting the auxiliary battery.
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic
learning function that completes learning when the respective system is used.
Click here
- Some parts must be initialized and set when replacing or removing and installing
parts.
Click here
- After performing repairs, perform the DTC check procedure and confirm that
the DTCs are not output again.
DTC check procedure: Turn the ignition switch to ON 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.
Click here
- Inspect the fuses for circuits related to this system before performing
the following procedure.
HINT:
- 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.
PROCEDURE
1.
|
CHECK FOR OPEN IN CAN BUS LINES (COMBINATION METER ASSEMBLY MAIN LINE)
|
(a) Disconnect the cable from the negative (-) auxiliary battery terminal.
(b) Disconnect the combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I5-31 (CANH) - I5-14 (CANL)
|
Cable disconnected from negative (-) auxiliary battery terminal
|
108 to 132 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Combination Meter Assembly)
|
|
|
NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER
ASSEMBLY)
|
OK |
|
|
2.
|
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I4-1 (EP) - Body ground
|
Cable disconnected from negative (-) auxiliary battery terminal
|
Below 1 Ω
|
I4-2 (ES) - Body ground
|
Cable disconnected from negative (-) auxiliary battery terminal
|
Below 1 Ω
|
|
|
*a
|
Front view of wire harness connector
(to Combination Meter Assembly)
|
|
|
(b) Reconnect the cable to the negative (-) auxiliary battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Switch Condition
|
Specified Condition
|
I4-5 (B) - Body ground
|
Always
|
11 to 14 V
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
|
OK |
|
|
3.
|
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
|
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I4-6 (IG+) - Body ground
|
Ignition switch ON
|
10.5 to 16 V
|
|
|
*a
|
Front view of wire harness connector
(to Combination Meter Assembly)
|
|
|
OK |
|
REPLACE COMBINATION METER ASSEMBLY
|
NG |
|
GO TO STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT)
|
READ NEXT:
DESCRIPTION
Detection Item
Symptom
Trouble Area
Certification ECU Communication Stop Mode
Communication stop for "Certification (Smar
DESCRIPTION
Detection Item
Symptom
Trouble Area
Center Airbag Sensor Communication Stop Mode
Communication stop for "Airbag" is
DESCRIPTION
Detection Item
Symptom
Trouble Area
Headlight ECU RH Communication Stop Mode
Communication stop for "Headlight Control (S
SEE MORE:
VEHICLE CONTROL HISTORY (RoB)
CHECK VEHICLE CONTROL HISTORY (RoB)
(a) Enter the following menus.
Powertrain > Engine > Utility
Tester Display
Vehicle Control History (RoB)
Vehicle Control History (RoB) Item
Code
Tester Display
DIAGNOSTIC TROUBLE CODE CHART
Charging System
DTC No.
Detection Item
MIL
Warning Indicate
Note
Link
P058A01
Battery Monitor Module General Electrical Failure
Does not come on
Charge