U0230
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0230: Lost Communication with Rear Gate Module
DTC U0230 - Lost Communication with Rear Gate Module
DESCRIPTION
HINT: For vehicles with power trunk lid system only.
WIRING DIAGRAM
INSPECTION PROCEDURE
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 the branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
NOTICE:
- After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
- 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 (POWER TRUNK LID CONTROL ECU BRANCH WIRE)
(a) Disconnect the S43 power trunk lid control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE POWER TRUNK LID CONTROL ECU BRANCH WIRE OR CONNECTOR (CANH, CANL)
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (POWER TRUNK LID CONTROL ECU - BATTERY AND BODY GROUND)
(a) Connect the cable to the negative (-) battery terminal.
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
(b) Disconnect the S43 power trunk lid control ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(d) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER TRUNK LID CONTROL ECU