EC-466
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
DIAGNOSIS SYSTEM (ECM)
AIR COND SIG ON/OFF Indicates [ON/OFF] condition of the air condition-
er switch as determined by the air conditioner sig-
nal.
P/N POSI SW ON/OFF Indicates [ON/OFF] condition from the park/neu-
tral position (PNP) switch signal.
PW/ST SIGNAL ON/OFF [ON/OFF] condition of the power steering system
(determined by the signal sent from EPS control
unit) is indicated.
LOAD SIGNAL ON/OFF Indicates [ON/OFF] condition from the electrical
load signal.
ON: Rear window defogger switch is ON and/or
lighting switch is in 2nd position.
OFF: Both rear window defogger switch and light-
ing switch are OFF.
IGNITION SW ON/OFF Indicates [ON/OFF] condition from ignition switch
signal.
CLUTCH P/P SW ON/OFF Indicates [ON/OFF] condition from the clutch
switch signal.
HEATER FAN SW ON/OFF Indicates [ON/OFF] condition from the heater fan
switch signal.
BRAKE SW ON/OFF Indicates [ON/OFF] condition from the stop lamp
switch signal.
INJ PULSE-B1 msec Indicates the actual fuel injection pulse width
compensated by ECM according to the input sig-
nals. When the engine is stopped, a certain
computed value is indicated.
IGN TIMING BTDC Indicates the ignition timing computed by ECM
according to the input signals. When the engine is stopped, a certain
value is indicated.
PURG VOL C/V % Indicates the EVAP canister purge volume con-
trol solenoid valve control value computed by the
ECM according to the input signals.
The opening becomes larger as the value in-
creases.
INT/V TIM (B1)°CA Indicates [°CA] of intake camshaft advance an-
gle.
INT/V SOL-B1
% The control value of the intake valve timing con-
trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.
The advance angle becomes larger as the value
increases.
AIR COND RLY ON/OFF The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is
indicated.
FUEL PUMP RLY ON/OFF Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
THRTL RELAY ON/OFF Indicates the throttle control motor relay control
condition determined by the ECM according to
the input signals.
COOLING FAN HI/LOW/OFF Indicates the condition of the cooling fan (deter-
mined by ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S1 HTR (B1) ON/OFF Indicates [ON/OFF] condition of heated oxygen
sensor 1 heater determined by ECM according to
the input signals. Monitored item Unit Description Remarks
EC-468
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
DIAGNOSIS SYSTEM (ECM)
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
*: Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat.TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJECTION Engine: Return to the original
trouble condition
Change the amount of fuel injec-
tion using CONSULT-III.If trouble symptom disappears, see
CHECK ITEM. Harness and connectors
Fuel injector
Heated oxygen sensor 1
IGNITION TIMING Engine: Return to the original
trouble condition
Timing light: Set
Retard the ignition timing using
CONSULT-III.If trouble symptom disappears, see
CHECK ITEM. Perform Idle Air Volume Learn-
ing.
POWER BALANCE Engine: After warming up, idle the
engine.
A/C switch OFF
Shift lever: P or N (A/T), Neutral
(M/T)
Cut off each fuel injector signal
one at a time using CONSULT-III.Engine runs rough or dies. Harness and connectors
Compression
Fuel injector
Power transistor
Spark plug
Ignition coil
COOLING FAN* Ignition switch: ON
Turn the cooling fan “LOW”, “HI”
and “OFF” CONSULT-III.Cooling fan moves and stops. Harness and connectors
IPDM E/R (Cooling fan relay)
Cooling fan motor
ENG COOLANT
TEMP Engine: Return to the original
trouble condition
Change the engine coolant tem-
perature using CONSULT-III.If trouble symptom disappears, see
CHECK ITEM. Harness and connectors
Engine coolant temperature
sensor
Fuel injector
FUEL PUMP RELAY Ignition switch: ON (Engine
stopped)
Turn the fuel pump relay “ON”
and “OFF” using CONSULT-III
and listen to operating sound.Fuel pump relay makes the operat-
ing sound. Harness and connectors
Fuel pump relay
PURG VOL CONT/V Engine: After warming up, run en-
gine at 1,500 rpm.
Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-III.Engine speed changes according
to the opening percent. Harness and connectors
Solenoid valve
V/T ASSIGN ANGLE Engine: Return to the original
trouble condition
Change intake valve timing using
CONSULT-III.If trouble symptom disappears, see
CHECK ITEM. Harness and connectors
Intake valve timing control sole-
noid valve
P1217 ENGINE OVER TEMPERATURE
EC-543
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
P1217 ENGINE OVER TEMPERATURE
DTC LogicINFOID:0000000001693362
DTC DETECTION LOGIC
NOTE:
If DTC P1217 is displayed with DTC U1000 U1001, first perform the trouble diagnosis for DTC U1000
U1001. Refer to EC-481, "
DTC Logic".
If DTC P1217 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-482, "
DTC Logic".
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.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-11, "
Inspection". Also,
replace the engine oil. Refer to LU-7, "
Draining".
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-20, "
SAE Viscosity Number".
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-543, "
Component Function Check".
NOTE:
Use component function check to check the overall function of the cooling fan. During this check, a DTC might
not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-544, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001693363
1.PERFORM COMPONENT FUNCTION CHECK-I
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.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217Engine over tempera-
ture (Overheat) Cooling fan does not operate properly (Over-
heat).
Cooling fan system does not operate proper-
ly (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 short-
ed.)
IPDM E/R (Cooling fan relay-1, -2, -3)
Cooling fan motor
Radiator hose
Radiator
Radiator cap
Reservoir tank
Water pump
Thermostat
EC-544
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
P1217 ENGINE OVER TEMPERATURE
Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
Is the coolant level in the reservoir tank and/or radiator below the
proper range?
YES >> Go to EC-544, "Diagnosis Procedure".
NO >> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK-II
Confirm whether customer filled the coolant or not.
Did customer fill the coolant?
YES >> Go to EC-544, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM COMPONENT FUNCTION CHECK-III
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III.
3. Make sure that cooling fan motor operate at each speed (LOW/HI).
Without CONSULT-III
Perform IPDM E/R auto active test and check cooling fan motors operation, refer to PCS-10, "
Diagnosis
Description".
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-544, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693364
1.INSPECTION START
Do you have CONSULT-III?
Ye s o r N o
Ye s > > G O T O 2 .
No-1 >> With A/C models: GO TO 4.
No-2 >> Without A/C models: GO TO 5
2.CHECK COOLING FAN LOW SPEED OPERATION
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III and touch “LOW” on the CON-
SULT-III screen.
3. Make sure that cooling fan operates at low speed.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check cooling fan control circuit. Refer to EC-593, "
Diagnosis Procedure".
3.CHECK COOLING FAN HIGH SPEED OPERATION
With CONSULT-III
1. Touch “HIGH” on the CONSULT-III screen.
2. Make sure that cooling fan operates at higher speed than low speed.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Check cooling fan control circuit. Refer to EC-593, "
Diagnosis Procedure".
SEF621W
P1217 ENGINE OVER TEMPERATURE
EC-545
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4.CHECK COOLING FAN LOW SPEED OPERATION
Without CONSULT-III
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 operates at low speed.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Check cooling fan speed control circuit. Refer to EC-593, "
Diagnosis Procedure".
5.CHECK COOLING FAN LOW SPEED OPERATION
Without CONSULT-III
1. Perfom IPDM E/R auto active test and check cooling fan motor operation. Refer to PCS-10, "
Diagnosis
Description".
2. Make sure that cooling fan operates at low speed.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Check cooling fan speed control circuit. Refer to EC-593, "
Diagnosis Procedure"
6.CHECK COOLING FAN HIGH SPEED OPERATION.
Without CONSULT-III
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 operates at higher speed than low speed.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Check cooling fan speed control circuit. Refer to EC-593, "
Diagnosis Procedure".
7.CHECK COOLING SYSTEM FOR LEAK
Check cooling system for leak. Refer to CO-11, "
Inspection".
Is leakage detected?
YES >> GO TO 9.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following for leak. Refer to CO-11, "
Inspection".
Hose
Radiator
Water pump
Reservoir tank
>> Repair or replace.
9.CHECK RESERVOIR TANK CAP
Check radiator cap. Refer to CO-14, "
Checking Radiator Cap".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace radiator cap.
10.CHECK THERMOSTAT
Check thermostat.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Replace thermostat.
EC-546
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
P1217 ENGINE OVER TEMPERATURE
11 .CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine coolant temperature sensor.
Is the inspection result normal?
OK >> GO TO 12.
NG >> Replace engine coolant temperature sensor.
12.CHECK MAIN 12 CAUSES
If the cause cannot be isolated, check the following.
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to CO-6, "
Troubleshooting Chart".
>> INSPECTION END
Engine Step Inspection item Equipment Standard Reference page
OFF 1 Blocked radiator
Blocked condenser
Blocked radiator grille
Blocked bumper Visual No blocking —
2 Coolant mixture Coolant tester 50 - 50% coolant mixtureMA-20, "
SAE Viscosity
Number"
3 Coolant level Visual Coolant up to MAX level in
reservoir tank and radiator
filler neckCO-11, "Inspection"
4 Reservoir tank cap Pressure tester 59 - 98 kPa
(0.6 - 1.0 bar, 0.6 - 1.0 kg/
cm
2, 9 - 14 psi) (Limit)CO-14, "
Checking Radia-
tor Cap"
ON*25 Coolant leaks Visual No leaksCO-11, "Inspection"
ON*26 Thermostat Touch the upper and
lower radiator hosesBoth hoses should be hotCO-22, "Removal and In-
stallation"
ON*17 Cooling fan motor CONSULT-III OperatingEC-543, "Component
Function Check"
OFF 8 Combustion gas leak Color checker chemical
tester 4 Gas analyzerNegative —
ON*
39 Coolant temperature
gauge Visual Gauge less than 3/4 when
driving—
Coolant overflow to res-
ervoir tank Visual No overflow during driving
and idlingCO-11, "
Inspection"
OFF*410 Coolant return from res-
ervoir tank to radiator Visual Should be initial level in
reservoir tankCO-11, "Inspection"
OFF 11 Cylinder head Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)EM-80, "Removal and In-
stallation"
12 Cylinder block and pis-
tons Visual No scuffing on cylinder
walls or pistonEM-108, "Inspection"
COOLING FAN
EC-593
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
COOLING FAN
DescriptionINFOID:0000000001693424
Cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
Refer to EC-433, "
System Diagram" for cooling fan operation.
Component Function CheckINFOID:0000000001693425
1.CHECK COOLING FAN LOW SPEED FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III and touch “LOW” on the CON-
SULT-III screen.
3. Make sure that cooling fans operates at low speed.
Without CONSULT-III
1. Start engine and let it idle.
2. Turn air conditioner switch and blower fan switch ON.
3. Make sure that cooling fan operates at low speed.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check cooling fan low speed control circuit. Refer to EC-593, "
Diagnosis Procedure".
2.CHECK COOLING FAN HIGH SPEED FUNCTION
With CONSULT-III
1. Touch “HI” on the CONSULT-III screen.
2. Make sure that cooling fans operates at higher speed than low speed.
Without CONSULT-III
1. Perform IPDM E/R auto active test and check cooling fan motors operation.
2. Make sure that cooling fan operates at high speed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Check cooling fan high speed control circuit. Refer to EC-593, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693426
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES-2 >> With A/C models: GO TO 3.
YES-2 >> Without A/C models: GO TO 5.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
50A fusible link (letter J) (with A/C models)
40A fusible link (letter J) (without A/C models)
Harness for open or short between IPDM E/R and battery
IPDM E/R
Ground Continuity
Connector Terminal
E44 22 Ground Existed
EC-594
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
COOLING FAN
>> Repair or replace malfunctioning part.
3.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
Harness for open or short between cooling fan motor and IPDM E/R
Harness for open or short between cooling fan motor and ground
Harness for open or short between IPDM E/R and ground
Resistor E5
>> Repair or replace malfunctioning part.
5.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E44 24
E3 1 Existed
E45 30
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 2 E4659
Ground Existed
39
IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E4423
E31
Existed 24 2
E45 30 3
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 4 E4659
Ground Existed
39