Infiniti G35 (V35). Manual — part 410
DTC P1211 TCS CONTROL UNIT
EC-521
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EC
DTC P1211 TCS CONTROL UNIT
PFP:47850
Description
NBS000X3
The malfunction information related to TCS is transferred through the CAN communication line from VDC/
TCS/ABS control unit to ECM.
Be sure to erase the malfunction information such as DTC not only for VDC/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis Logic
NBS000X4
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
NBS000X5
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 60 seconds.
4.
If 1st trip DTC is detected, go to
EC-521, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic Procedure
NBS000X6
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1211
1211
TCS control unit
ECM receives a malfunction information from
VDC/TCS/ABS control unit.
●
VDC/TCS/ABS control unit
●
TCS related parts
SEF058Y
EC-522
DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE
PFP:47850
Description
NBS000X7
NOTE:
●
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to
EC-161, "DTC U1000, U1001 CAN COMMUNICATION LINE"
.
●
If DTC P1212 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to
EC-164, "DTC U1010 CAN COMMUNICATION"
.
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and VDC/TCS/ABS control unit.
Be sure to erase the malfunction information such as DTC not only for VDC/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis Logic
NBS000X8
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
NBS000X9
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 1st trip DTC is detected, go to
EC-522, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic Procedure
NBS000XA
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1212
1212
TCS communication
line
ECM can not receive the information
from VDC/TCS/ABS control unit continu-
ously.
●
Harness or connectors
(The CAN communication line is open or
shorted.)
●
VDC/TCS/ABS control unit
●
Dead (Weak) battery
SEF058Y
DTC P1217 ENGINE OVER TEMPERATURE
EC-523
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EC
DTC P1217 ENGINE OVER TEMPERATURE
PFP:00000
Description
NBS000XB
SYSTEM DESCRIPTION
NOTE:
●
If DTC P1217 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to
EC-161, "DTC U1000, U1001 CAN COMMUNICATION LINE"
.
●
If DTC P1217 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to
EC-164, "DTC U1010 CAN COMMUNICATION"
Cooling Fan Control
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
1
Cooling fan
control
IPDM E/R
(Cooling fan relay)
Battery
Battery voltage*
1
Wheel sensor
Vehicle speed*
2
Engine coolant temperature sensor
Engine coolant temperature
Air conditioner switch
Air conditioner ON signal*
2
Refrigerant pressure sensor
Refrigerant pressure
PBIB2483E
EC-524
DTC P1217 ENGINE OVER TEMPERATURE
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
COMPONENT DESCRIPTION
Cooling Fan Motor
The cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
CONSULT-II Reference Value in Data Monitor Mode
NBS000XC
Specification data are reference values.
On Board Diagnosis Logic
NBS000XD
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
Cooling fan speed
Cooling fan relay
1
2
3
Stop
OFF
OFF
OFF
Low
ON
OFF
OFF
High
ON
ON
ON
Cooling fan speed
Cooling fan motor terminals
(+)
(
−
)
Low
1
4
2
3
High
1 and 2
3 and 4
MONITOR ITEM
CONDITION
SPECIFICATION
AIR COND SIG
●
Engine: After warming up, idle
the engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
COOLING FAN
●
Engine: After warming up, idle
the engine
●
Air conditioner switch: OFF
Engine coolant temperature is 97
°
C
(206
°
F) or less
OFF
Engine coolant temperature is
between 98
°
C (208
°
F) and 99
°
C
(210
°
F)
LOW
Engine coolant temperature is 100
°
C
(212
°
F) or more
HI
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1217
1217
Engine over tempera-
ture (Overheat)
●
Cooling fan does not operate properly (Over-
heat).
●
Cooling fan system does not operate prop-
erly (Overheat).
●
Engine coolant was not added to the system
using the proper filling method.
●
Engine coolant is not within the specified
range.
●
Harness or connectors
(The cooling fan circuit is open or
shorted.)
●
Cooling fan
●
IPDM E/R (Cooling fan relays)
●
Radiator hose
●
Radiator
●
Radiator cap
●
Water pump
●
Thermostat
For more information, refer to
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