Infiniti G20 (P11). Manual — part 221
4)
Make sure that A/C switch is “OFF” and air conditioner is not
operating. If NG, check air conditioner circuit. Refer to HA-23
or HA-140, “TROUBLE DIAGNOSES”. After repair, go to the
next step.
5)
Turn ignition switch “OFF”
6)
Disconnect engine coolant temperature sensor harness con-
nector.
7)
Connect 150
Ω
resistor to engine coolant temperature sensor.
8)
Start engine and make sure that cooling fan operates.
Be careful not to overheat engine.
If NG, go to “Diagnostic Procedure”, EC-298 (A/T models) or
EC-309 (M/T models). After repair, go to the next step.
9)
Check for blocked coolant passage.
a)
Warm up engine to normal operating temperature, then grasp
radiator upper hose and lower hose and make sure that cool-
ant flows.
If NG, go to “Diagnostic Procedure”, EC-298 (A/T models) or
EC-309 (M/T models). After repair, go to the next step.
Be extremely careful not to touch any moving or adjacent
parts.
10) Check for blocked radiator air passage.
a)
When market fog lamps have been installed, check for dam-
aged fans and clogging in the condenser and radiator.
b)
Check the front end for clogging caused by insects or debris.
c)
Check for improper fitting of front-end cover, damaged radia-
tor grille or bumper, damaged vehicle front.
If NG, take appropriate action and then go to the next step.
11) Check function of ECT sensor.
Refer to step 6 of “Diagnostic Procedure”, EC-298 (A/T mod-
els) or EC-309 (M/T models).
If NG, replace ECT sensor and go to the next step.
12) Check ignition timing. Refer to basic inspection, EC-107.
Make sure that ignition timing is 15°
±
2° at idle.
If NG, adjust ignition timing and then recheck.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION
Overall Function Check (Cont’d)
EC-295
Wiring Diagram
NCEC0510
A/T MODELS
NCEC0510S01
TEC826
DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION
Wiring Diagram
EC-296
M/T MODELS
NCEC0510S02
TEC827
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION
Wiring Diagram (Cont’d)
EC-297
Diagnostic Procedure (A/T Models)
NCEC0511
1
INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 4.
2
CHECK COOLING FAN LOW SPEED OPERATION
With CONSULT-II
1. Disconnect cooling fan relays-2 and -3.
SEF857X
2. Turn ignition switch “ON”.
3. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-II.
SEF784Z
4. Make sure that cooling fans-1 and -2 operate at low speed.
OK or NG
OK
©
GO TO 3.
NG
©
Check cooling fan low speed control circuit. (Go to PROCEDURE A, EC-304.)
DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION
Diagnostic Procedure (A/T Models)
EC-298
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