Open In CAN Main Wire
NETWORKING: CAN COMMUNICATION SYSTEM: Open in CAN Main Wire
- Open in CAN Main Wire
DESCRIPTION
There may be an open circuit in the CAN main wire and/or DLC3 branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 69 Ohms or higher.
* *: w/ Navigation System
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
NEXT -- Continue to next step.
2. CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - DLC3)
(a) Disconnect the F59 No. 2 junction connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)
OK -- Continue to next step.
3. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
4. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - ECM)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CONNECT CONNECTOR
OK -- REPLACE NO. 2 JUNCTION CONNECTOR
5. CONNECT CONNECTOR
(a) Reconnect the F59 No. 2 junction connector connector.
NEXT -- Continue to next step.
6. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)
(a) Disconnect the A36 No. 1 junction connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
7. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
OK -- REPLACE NO. 1 JUNCTION CONNECTOR
8. CONNECT CONNECTOR
(a) Reconnect the A36 No. 1 junction connector connector.
NEXT -- Continue to next step.
9. CHECK FOR OPEN IN CAN BUS MAIN WIRE (COMBINATION METER ASSEMBLY - NO. 1 JUNCTION CONNECTOR)
(a) Disconnect the F14 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ASSEMBLY - NO. 1 JUNCTION CONNECTOR)
OK -- REPLACE COMBINATION METER ASSEMBLY Removal
10. CONNECT CONNECTOR
(a) Reconnect the F59 No. 2 junction connector connector.
NEXT -- Continue to next step.
11. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - ECM)
HINT
For vehicles without a navigation system, go to "Check for Open in Can Bus Main Wire (No. 3 Junction Connector - ECM)".
(a) Disconnect the G13 No. 4 junction connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
12. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)
OK -- REPLACE NO. 4 JUNCTION CONNECTOR
13. CONNECT CONNECTOR
(a) Reconnect the G13 No. 4 junction connector connector.
NEXT -- Continue to next step.
14. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - ECM)
(a) Disconnect the F60 No. 3 junction connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
15. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 OR NO. 2 JUNCTION CONNECTOR)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
Result
C -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
B -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)
A -- REPLACE NO. 3 JUNCTION CONNECTOR
16. CONNECT CONNECTOR
(a) Reconnect the F60 No. 3 junction connector connector.
NEXT -- Continue to next step.
17. CHECK FOR OPEN IN CAN BUS MAIN WIRE (ECM - NO. 3 JUNCTION CONNECTOR)
(a) Disconnect the F50 ECM connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for 1GR-FE
for 2TR-FE
Text in Illustration
Result
C -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 3 JUNCTION CONNECTOR)
B -- REPLACE ECM Removal
A -- REPLACE ECM Removal