Popup Hood ECU Communication Stop Mode [03/2017 - 04/2020]: Procedure
- CHECK FOR OPEN IN CAN BUS WIRE (PEDESTRIAN DETECTION ECU ASSEMBLY BRANCH WIRE)
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Disconnect the pedestrian detection ECU assembly connector.
*a Front view of wire harness connector
(to Pedestrian Detection ECU Assembly)Refer to PRECAUTION [03/2017 - 04/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition P40-13 (CANH) - P40-22 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Result
Result OK NG
Result:
NG
REPLACE CAN BRANCH WIRE AND CONNECTOR
Result:
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 P40-25 (E1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω P40-26 (E2) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω *a Front view of wire harness connector
(to Pedestrian Detection ECU Assembly) - Reconnect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Refer to INITIALIZATION [03/2017 - 04/2020]
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition P40-21 (IG2) - Body ground Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V Result
Result OK NG
Result:
OK
REPLACE PEDESTRIAN DETECTION ECU ASSEMBLY. Refer to REMOVAL [03/2017 - 04/2020]
Result:
NG
REPLACE HARNESS AND CONNECTOR
- Measure the resistance according to the value(s) in the table below.