Code No. U0155 Meter CAN timeout
caution
If diagnosis code No. U0155 is set, be sure to diagnose the CAN bus line.
Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the combination meter cannot be received, OSS-ECU sets the diagnosis code No.U0155.
JUDGEMENT CRITERIA
Check Conditions
When all the following conditions are met.
Power supply mode: ON
ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
After the following condition is met, 2,500 ms or more have elapsed.
CAN signal from the combination meter cannot be received.
PROBABLE CAUSES
Malfunction of the CAN bus line
Combination meter malfunction
Malfunction of combination meter power supply circuit
Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1.
M.U.T.-III CAN bus diagnosis
2.
ETACS-ECU diagnosis code check
3.
OSS-ECU diagnosis code recheck