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![NISSAN X-TRAIL 2001 Service Repair Manual DTC P1211 TCS CONTROL UNIT
EC-1499
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DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS00LUJ
The malfunction information related to TCS is transferred through the NISSAN X-TRAIL 2001 Service Repair Manual DTC P1211 TCS CONTROL UNIT
EC-1499
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DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS00LUJ
The malfunction information related to TCS is transferred through the](/manual-img/5/57405/w960_57405-1848.png)
DTC P1211 TCS CONTROL UNIT
EC-1499
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DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS00LUJ
The malfunction information related to TCS is transferred through the CAN communication line from ESP/
TCS/ABS control unit to ECM.
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 LogicEBS00LUK
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 ProcedureEBS00LUL
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-1499, "
Diagnostic Proce-
dure" .
Diagnostic ProcedureEBS00LUM
Go to BRC-64, "TROUBLE DIAGNOSIS" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1211
1211TCS control unitECM receives a malfunction information from
ESP/TCS/ABS control unit.
●ESP/TCS/ABS control unit
●TCS related parts
SEF058Y
Page 1850 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1500
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DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE
PFP:47850
DescriptionEBS00LUN
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosi NISSAN X-TRAIL 2001 Service Repair Manual EC-1500
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DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE
PFP:47850
DescriptionEBS00LUN
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosi](/manual-img/5/57405/w960_57405-1849.png)
EC-1500
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DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE
PFP:47850
DescriptionEBS00LUN
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-1448, "
DTC U1000 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 LogicEBS00LUO
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 ProcedureEBS00LUP
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-1500, "
Diagnostic Proce-
dure" .
Diagnostic ProcedureEBS00LUQ
1. CHECK ESP/TCS/ABS CONTROL UNIT FUNCTION
Refer to BRC-64, "
TROUBLE DIAGNOSIS" .
>>INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212TCS communication
lineECM 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 (models with ESP)
SEF058Y
Page 1851 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual DTC P1216 EDU
EC-1501
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DTC P1216 EDUPFP:22710
DescriptionEBS008X9
The ECM sends the fuel injection signal to EDU (Electronic Drive Unit). Then the EDU send NISSAN X-TRAIL 2001 Service Repair Manual DTC P1216 EDU
EC-1501
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DTC P1216 EDUPFP:22710
DescriptionEBS008X9
The ECM sends the fuel injection signal to EDU (Electronic Drive Unit). Then the EDU send](/manual-img/5/57405/w960_57405-1850.png)
DTC P1216 EDU
EC-1501
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DTC P1216 EDUPFP:22710
DescriptionEBS008X9
The ECM sends the fuel injection signal to EDU (Electronic Drive Unit). Then the EDU sends ON signals to
fuel injectors to operate them.
The EDU monitors injector ground circuit and sends the feed back signal to the ECM.
ECM Terminals and Reference ValueEBS008XB
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
PBIB0482E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
A1
A2
A3
A4L/W
Y/PU
PU
YEDU drive No. 2
EDU drive No. 4
EDU drive No. 3
EDU drive No. 1[Engine is running]
●Warm-up condition
●Idle speed0 - 4V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 4V
A8
A9R
RPower supply for ECM[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
PBIB0387E
PBIB0388E
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![NISSAN X-TRAIL 2001 Service Repair Manual EC-1502
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DTC P1216 EDU
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS008XC
DTC Confirmation ProcedureEBS008XD
WITH CONSULT- NISSAN X-TRAIL 2001 Service Repair Manual EC-1502
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DTC P1216 EDU
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS008XC
DTC Confirmation ProcedureEBS008XD
WITH CONSULT-](/manual-img/5/57405/w960_57405-1851.png)
EC-1502
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DTC P1216 EDU
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS008XC
DTC Confirmation ProcedureEBS008XD
WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to “START” for at
least 2 seconds.)
4. If DTC is detected, go to EC-1505, "
Diagnostic Procedure" .
A29 W/PU EDU injector check signal[Engine is running]
●Warm-up condition
●Idle speed1 - 5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm1 - 5V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
●For a few seconds after turning ignition
switch “OFF”Approximately 0V
[Ignition switch “OFF”]
●A few seconds passed after turning ignition
switch “OFF”BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0391E
PBIB0392E
DTC Malfunction is detected when .... Check Items (Possible cause)
P1216
●EDU feed back signal is not normal pattern.●Harness or connectors
(Injector drive circuit is open or shorted.)
●Electronic drive unit
●Fuel injectors
SEF817Y
Page 1853 of 3833
DTC P1216 EDU
EC-1503
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Wiring DiagramEBS008XE
TBWA0118E
Page 1854 of 3833
EC-1504
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DTC P1216 EDU
TBWA0119E
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![NISSAN X-TRAIL 2001 Service Repair Manual DTC P1216 EDU
EC-1505
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Diagnostic ProcedureEBS008XF
1.INSPECTION START
1. Turn ignition switch “START”.
2. Is any cylinder ignited?
OK or NG
OK >> GO TO 5.
NG >> GO T NISSAN X-TRAIL 2001 Service Repair Manual DTC P1216 EDU
EC-1505
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Diagnostic ProcedureEBS008XF
1.INSPECTION START
1. Turn ignition switch “START”.
2. Is any cylinder ignited?
OK or NG
OK >> GO TO 5.
NG >> GO T](/manual-img/5/57405/w960_57405-1854.png)
DTC P1216 EDU
EC-1505
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Diagnostic ProcedureEBS008XF
1.INSPECTION START
1. Turn ignition switch “START”.
2. Is any cylinder ignited?
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK EDU POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect EDU harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between EDU terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
●Harness for open or short between EDU and ECM
●Harness for open or short between EDU and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EDU GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between EDU terminal 8 and ground. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB0407E
Voltage: Battery voltage
PBIB0421E
Continuity should exist.
Page 1856 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1506
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DTC P1216 EDU
5. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between the following terminals. Refer to Wiring Diagr NISSAN X-TRAIL 2001 Service Repair Manual EC-1506
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DTC P1216 EDU
5. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between the following terminals. Refer to Wiring Diagr](/manual-img/5/57405/w960_57405-1855.png)
EC-1506
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DTC P1216 EDU
5. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between the following terminals. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK EDU OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect fuel injector harness connectors.
2. Check harness continuity between the following terminals. Refer
to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK FUEL INJECTOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between fuel injector terminal 3 of each cylinder and EDU terminal 13. Refer to
Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK FUEL INJECTOR
Refer to EC-1478, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace fuel injector.
ECM terminal EDU terminal
A4 4
A3 3
A2 2
A1 1
Continuity should exist
EDU terminal Fuel injector terminal
94
10 4
11 4
12 4
Continuity should exist.
PBIB0409E
Continuity should exist.