|
When the power is supplied from the ignition switch (IG1) to the IG1 relay in ETACS-ECU,
IG1 relay is turned on. At this time, the ASC-ECU power supply signal is sent to ASC-ECU (terminal
No. 4) from the fusible link No. 33 through the multi-purpose fuse No. 12.
|
|
This diagnosis code is set when the ASC-ECU power supply voltage is more than 18.0 ± 1.0
V.
|
|
- Battery failure
- ASC-ECU malfunction
- Charging system failed
|
|
Use M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
On completion, go to Step 2.
|
|
|
|
Q.
Is the diagnosis code No. C2101 set?
|
|
This diagnosis is complete.
|
|
|
|
Refer to GROUP 54A - Battery Test .
|
|
Q.
Is the battery in good condition?
|
|
Charge or replace the battery.
|
|
|
|
Refer to GROUP 16 - Charging System .
|
|
Q.
Is the charging system in good condition?
|
|
Repair or replace the charging system component(s).
|
|
|
|
(1)Disconnect the ASC-ECU connector, connect special tool ASC check harness (MB991997) to
the harness-side connector, and then measure the voltage at the special tool connector side.
note |
Do not connect the special tool ASC check harness (MB991997) to ASC-ECU.
|
(2)Turn the ignition switch to the ON position. (3)Measure the voltage between terminal No. 4 and body earth. OK: Approximately battery voltage
Q.
Is the check result normal?
Go to Step 7.
Go to Step 6.
|
|
Q.
Is the check result normal?
|
|
The open or short circuit may be present in the power supply circuit. Repair the
wiring harness between the A-03 ASC-ECU connector terminal No. 4 and the fusible link No. 33.
|
|
|
|
NO : Repair the defective connector.
|
|
|
|
Q.
Is the diagnosis code No. C2101 set?
|
|
This diagnosis is complete.
|
|
|