Infiniti G35 (V35). Manual — part 411

DTC P1217 ENGINE OVER TEMPERATURE

EC-525

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CAUTION:

When a malfunction is indicated, be sure to replace the coolant. Refer to

MA-13, "Changing Engine

Coolant"

. Also, replace the engine oil. Refer to

MA-16, "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-11, "Anti-Freeze Coolant Mixture Ratio"

.

2.

After refilling coolant, run engine to ensure that no water-flow noise is emitted.

Overall Function Check

NBS000XE

Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.

WARNING:

Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from 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-529,

"Diagnostic Procedure"

.

2.

Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to

EC-529,

"Diagnostic Procedure"

.

3.

Turn ignition switch ON.

4.

Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.

5.

If the results are NG, go to

EC-529, "Diagnostic Procedure"

.

WITH GST

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-529,

"Diagnostic Procedure"

.

2.

Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to

EC-529,

"Diagnostic Procedure"

.

3.

Start engine.

CAUTION:

Be careful not to overheat engine.

4.

Turn air conditioner switch ON.

5.

Turn blower fan switch ON.

SEF621W

SEF646X

SEF621W

EC-526

DTC P1217 ENGINE OVER TEMPERATURE

6.

Make sure that cooling fans operates at low speed.
If NG, go to

EC-529, "Diagnostic Procedure"

.

If OK, go to the following steps.

7.

Turn ignition switch OFF.

8.

Turn air conditioner switch and blower fan switch OFF.

9.

Disconnect engine coolant temperature sensor harness connec-
tor.

10. Connect 150

Ω

resistor to engine coolant temperature sensor

harness connector.

11. Restart engine and make sure that cooling fan operates at

higher speed than low speed.

CAUTION:

Be careful not to overheat engine.

12. If NG, go to

EC-529, "Diagnostic Procedure"

.

SEC163BA

MEC475B

DTC P1217 ENGINE OVER TEMPERATURE

EC-527

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Wiring Diagram

NBS000XF

TBWM1120E

EC-528

DTC P1217 ENGINE OVER TEMPERATURE

TBWM0840E