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EC-756
[QR (WITHOUT EURO-OBD)]
DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE PFP:47850
Description BBS001QL
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-635, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and ESP/TCS/ABS control unit.
Be sure to erase the malfunction information such as DTC not only for ESP/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis Logic BBS001QM
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MI will not light up for this self-diagnosis.
DTC Confirmation Procedure BBS001QN
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 10 seconds.
4. If a 1st trip DTC is detected, go to EC-756, "
Diagnostic Proce-
dure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 60 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If 1st trip DTC is detected, go to EC-756, "
Diagnostic Procedure" .
Diagnostic Procedure BBS001QO
Go to BRC-52, "TROUBLE DIAGNOSIS" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212
TCS communication
line
ECM can not receive the information
from ESP/TCS/ABS control unit continu-
ously.
● Harness or connectors
(The CAN communication line is open or
shorted.)
● ESP/TCS/ABS control unit
● Dead (Weak) battery
SEF058Y
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