2007 NISSAN LATIO ignition

EC-440Revision: June 2006
DTC P0850 PNP SWITCH
2007 Versa
4. CHECK PNP SWITCH
Refer to AT-101, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace PNP switch.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-143, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
M/T MODELS
1. CHECK PNP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between PNP switch terminal 2 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E8, F8

Harness for open or short between PNP switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between PNP switch terminal 3 and ECM terminal 69.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.Voltage: Battery voltage
PBIB3003E
Continuity should exist.

DTC P0850 PNP SWITCH
EC-441
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4. CHECK PNP SWITCH
Refer to MT-11, "
POSITION SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Replace PNP switch.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-143, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
CVT MODELS
1. CHECK DTC WITH TCM
Refer to CVT-30, "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Ye s o r N o
Yes >> GO TO 3.
No >> Refer to SC-10, "
STARTING SYSTEM" .
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect ECM and TCM harness connectors.
3. Check harness continuity between TCM terminal 24 and ECM terminal 69.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F8, E8

Harness for open or short between TCM and ECM.
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-143, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

DTC P1217 ENGINE OVER TEMPERATURE
EC-445
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Revision: June 20062007 Versa
On Board Diagnosis LogicUBS00QKV
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.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-8, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-6, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-12, "
Anti-freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckUBS00QKW
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WA RN ING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the reservoir tank or the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-450,
"PROCEDURE FOR MODELS WITH A/C" or EC-454, "PRO-
CEDURE FOR MODELS WITHOUT A/C" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-450,
"PROCEDURE FOR MODELS WITH A/C" or EC-454, "PRO-
CEDURE FOR MODELS WITHOUT A/C" .
3. Turn ignition switch ON.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over temperature
(Overheat)

Cooling fan does not operate properly (Over-
heat).

Cooling fan system does not operate properly
(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
(Cooling fan circuit is open or shorted.)

Cooling fan

IPDM E/R (Cooling fan relays)

Radiator hose

Radiator

Reservoir tank

Radiator cap

Water pump

Thermostat

Water control valve
For more information, refer to EC-458,
"Main 13 Causes of Overheating" .
SEF 6 21 W

EC-446Revision: June 2006
DTC P1217 ENGINE OVER TEMPERATURE
2007 Versa
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go to EC-450, "
PROCEDURE FOR MOD-
ELS WITH A/C" or EC-454, "PROCEDURE FOR MODELS
WITHOUT A/C" .
WITH GST
Models with A/C
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-450,
"PROCEDURE FOR MODELS WITH A/C" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-450,
"PROCEDURE FOR MODELS WITH A/C" .
3. Start engine.
CAUTION:
Be careful not to overheat engine.
4. Set temperature control switch to full cold position.
5. Turn air conditioner switch ON.
6. Turn blower fan switch ON.
7. Run engine at idle for a few minutes with air conditioner operating.
CAUTION:
Be careful not to overheat engine.
8. Make sure that cooling fans operates at low speed.
If NG, go to EC-450, "
PROCEDURE FOR MODELS WITH A/C" .
If OK, go to the following step.
9. Turn ignition switch OFF.
10. Turn air conditioner switch and blower fan switch OFF.
11. Disconnect engine coolant temperature sensor harness connec-
tor.
12. Connect 150Ω resistor to engine coolant temperature sensor
harness connector.
13. Restart engine and make sure that cooling fan operates at
higher speed than low speed.
CAUTION:
Be careful not to overheat engine.
14. If NG, go to EC-450, "
PROCEDURE FOR MODELS WITH A/C" .
SEF 6 46 X
SEF 6 21 W
MBIB0651E
SEF 0 23 R

DTC P1217 ENGINE OVER TEMPERATURE
EC-447
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Models without A/C
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-454,
"PROCEDURE FOR MODELS WITHOUT A/C" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-454,
"PROCEDURE FOR MODELS WITHOUT A/C" .
3. Perform IPDM E/R auto active test and check cooling fan motor
operation, refer to PG-21, "
Auto Active Test" .
4. Make sure that cooling fan operate at low speed.
If NG, go to EC-454, "
PROCEDURE FOR MODELS WITHOUT
A/C" .
5. Turn ignition switch OFF.
6. Disconnect engine coolant temperature sensor harness connector.
7. Connect 150Ω resistor to engine coolant temperature sensor harness connector.
8. Start engine and make that cooling fan operates. Be careful not
to overheat engine.
9. If NG, go to EC-454, "
PROCEDURE FOR MODELS WITHOUT
A/C" .
SEF 6 21 W
SEF 0 23 R

EC-450Revision: June 2006
DTC P1217 ENGINE OVER TEMPERATURE
2007 Versa
Diagnostic ProcedureUBS00QKY
PROCEDURE FOR MODELS WITH A/C
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 4.
2. CHECK COOLING FAN LOW SPEED OPERATION
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II and touch “LOW” on the CONSULT-II screen.
3. Make sure that cooling fan operate at low speed.
OK or NG
OK >> GO TO 3.
NG >> Check cooling fan control circuit. (Go to EC-452, "
PRO-
CEDURE A" .)
3. CHECK COOLING FAN HIGH SPEED OPERATION
With CONSULT-II
1. Touch “HIGH” on the CONSULT-II screen.
2. Make sure that cooling fan operate at higher speed than low
speed.
OK or NG
OK >> GO TO 6.
NG >> Check cooling fan control circuit. (Go to EC-452, "
PRO-
CEDURE A" .)
SEF 7 84 Z
SEF 7 85 Z

DTC P1217 ENGINE OVER TEMPERATURE
EC-451
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4. CHECK COOLING FAN LOW SPEED OPERATION
Without CONSULT-II
1. Start engine and let it idle.
2. Turn air conditioner switch ON.
3. Turn blower fan switch ON.
4. Make sure that cooling fan operate at low speed.
OK or NG
OK >> GO TO 5.
NG >> Check cooling fan low speed control circuit. (Go to EC-
452, "PROCEDURE A" .)
5. CHECK COOLING FAN HIGH SPEED OPERATION
Without CONSULT-II
1. Turn ignition switch OFF.
2. Turn air conditioner switch and blower fan switch OFF.
3. Disconnect engine coolant temperature sensor harness connector.
4. Connect 150Ω resistor to engine coolant temperature sensor harness connector.
5. Restart engine and make sure that cooling fan operate at higher
speed than low speed.
OK or NG
OK >> GO TO 6.
NG >> Check cooling fan high speed control circuit. (Go to EC-
452, "PROCEDURE A" .)
6. CHECK COOLING SYSTEM FOR LEAK
Refer to CO-8, "
ENGINE COOLANT" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following for leak.

Hose

Radiator

Water pump (Refer to CO-17, "WATER PUMP" .)
>> Repair or replace.
MBIB0651E
SEF 0 23 R

EC-452Revision: June 2006
DTC P1217 ENGINE OVER TEMPERATURE
2007 Versa
8. CHECK RADIATOR CAP
Refer to CO-11, "
RADIATOR" .
OK or NG
OK >> GO TO 9.
NG >> Replace radiator cap.
9. CHECK COMPONENT PARTS
Check the following;.

Thermostat. (Refer to CO-17, "WATER PUMP" .)

Water control valve. (Refer to CO-20, "WATER OUTLET AND WATER CONTROL VALVE" .)

Engine coolant temperature sensor. (Refer to EC-205, "Component Inspection" .)
OK or NG
OK >> GO TO 10.
NG >> Replace malfunctioning component.
10. CHECK MAIN 13 CAUSES
If the cause cannot be isolated, go to EC-458, "
Main 13 Causes of Overheating" .
>>INSPECTION END
PROCEDURE A
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E44.
3. Check voltage between IPDM E/R terminal 22 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

50A fusible link

Harness for open or short between IPDM E/R and battery
>> Repair open circuit or short to ground or short to power in harness or connectors. Voltage: Battery voltage
PBIB2607E