Open in CAN Main Bus Line [08/2013 - ]: Procedure

PRECAUTION
NOTE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work. Refer to PRECAUTION [08/2013 - ] .

NEXT: Go to next step
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
  WARNING:
  Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
  
  NOTE:
  When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION [08/2013 - ] .
NEXT: Go to next step

CHECK DLC3

Disconnect the CAN junction connector connector.

Measure the resistance according to the value(s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
E1-6 (CANH) - E86-4 (CANH)	Ignition switch off	Below 1 Ω
E1-14 (CANL) - E86-15 (CANL)	Ignition switch off	Below 1 Ω

TEXT IN ILLUSTRATION

*a	Front view of DLC3
*b	Rear view of wire harness connector (to CAN Junction Connector)

NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CAN-H, CAN-L)

OK: Go to next step

CHECK FOR OPEN IN CAN BUS MAIN WIRE (CAN JUNCTION CONNECTOR - ECM)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
E86-1 (CANH) - E86-12 (CANL)	Ignition switch off	108 to 132 Ω

TEXT IN ILLUSTRATION

*a	Rear view of wire harness connector (to CAN Junction Connector)

NG → See step 6

OK: Go to next step

CHECK FOR OPEN IN CAN BUS MAIN WIRE (CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY (COMBINATION METER ECU)

Measure the resistance according to the value(s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
E86-3 (CANH) - E86-14 (CANL)	Ignition switch off	108 to 132 Ω

TEXT IN ILLUSTRATION

*a	Rear view of wire harness connector (to CAN Junction Connector)

NG → See step 8

OK → REPLACE CAN JUNCTION CONNECTOR

CONNECT CONNECTOR
1. Reconnect the E86 CAN junction connector connector.
NEXT: Go to next step

CHECK FOR OPEN IN CAN BUS MAIN WIRE (ECM - CAN JUNCTION CONNECTOR)

Disconnect the ECM connector.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
E77-32 (CANH) - E77-31 (CANL)	Ignition switch off	108 to 132 Ω

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to ECM)

NG → REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN-H, CAN-L)

OK → See step 11

CONNECT CONNECTOR
1. Reconnect the E86 CAN junction connector connector.
NEXT: Go to next step

CHECK FOR OPEN IN CAN BUS MAIN WIRE (COMBINATION METER ASSEMBLY (COMBINATION METER ECU) - CAN JUNCTION CONNECTOR)

Disconnect the combination meter connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
E14-10 (CANH) - E14-9 (CANL)	Ignition switch off	108 to 132 Ω

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to Combination Meter Assembly (Combination Meter ECU))

NG → REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN-H, CAN-L)

OK → See step 10

REPLACE COMBINATION METER ASSEMBLY (COMBINATION METER ECU). Refer to REMOVAL [08/2013 - ]
REPLACE ECM. Refer to REMOVAL [08/2013 - ]