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Description
NFEC1273
NOTE:
If DTC P1212 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to “DTC U1000, U1001 CAN COMMUNICATION LINE”, EC-164.
This CAN communication line is used to control the smooth engine operation during the ABS or TCS opera-
tion. Pulse signals are exchanged between ECM and ABS actuator and electric unit or ABS/TCS control unit.
Be sure to erase the malfunction information such as DTC not only in ABS actuator and electric unit
or ABS/TCS control unit but also ECM after the ABS or ABS/TCS related repair.
On Board Diagnosis Logic
NFEC1274
Freeze frame data is not stored in the ECM for this self-diagnosis. The MIL will not light up for this
self-diagnosis.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212
ABS/TCS communication
line
ECM cannot receive the information from
ABS actuator and electric unit or ABS/TCS
control unit continuously.
I Harness or connectors
(The CAN communication line is open
or shorted.)
I ABS actuator and electric unit
I ABS/TCS control unit
I Dead (Weak) battery
DTC Confirmation Procedure
NFEC1275
TESTING CONDITION:
Before performing the following procedure, confirm that bat-
tery voltage is more than 10.5V at idle.
SEF058Y
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 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-531.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC P1212 ABS/TCS COMMUNICATION LINE
Description
EC-530
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