Certification ECU Communication Stop Mode [08/2014 - ]: Procedure
- CHECK CAN BUS LINE FOR DISCONNECTION (CERTIFICATION ECU BRANCH LINE)
- Turn the power switch off.
- Disconnect the certification ECU (smart key ECU assembly) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition H1-9 (CANH) - H1-10 (CANL) Power switch off 54 to 69 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Certification ECU)
Result: NG
NG
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CERTIFICATION ECU)
Result: OK
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition H1-15 (E) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition H1-1 (+B) - Body ground Power switch off 11 to 14 V H1-16 (IG) - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Certification ECU)
Result: OK
OK
REPLACE SMART KEY ECU ASSEMBLY (CERTIFICATION ECU)
(See article. Refer to REMOVAL [08/2014 - ] )
Result: NG
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.