Frelander 2. Manual — part 229
1
2
DTC
Description
Possible Cause
Action
resistance
Engine coolant temperature
(ECT) sensor failure
new sensor as required.
REFER to:
Engine Coolant Temperature
(ECT) Sensor
(303-14A Electronic
Engine Controls - I6 3.2L Petrol,
Removal and Installation).
P011621 Engine coolant temperature sensor 1
circuit range/performance - signal
amplitude less than minimum
Engine coolant temperature
(ECT) sensor 1 circuit: short
circuit to ground
Engine coolant temperature
(ECT) sensor 1 circuit: open
circuit
Engine coolant temperature
(ECT) sensor failure
Check the ECT sensor and circuits.
Refer to the electrical guides. Install a
new sensor as required.
REFER to:
Engine Coolant Temperature
(ECT) Sensor
(303-14A Electronic
Engine Controls - I6 3.2L Petrol,
Removal and Installation).
P011622 Engine coolant temperature sensor 1
circuit range/performance - signal
amplitude greater than maximum
Engine coolant temperature
(ECT) sensor 1 circuit: short
circuit to power
Engine coolant temperature
(ECT) sensor failure
Check the ECT sensor and circuits.
Refer to the electrical guides. Install a
new sensor as required.
REFER to:
Engine Coolant Temperature
(ECT) Sensor
(303-14A Electronic
Engine Controls - I6 3.2L Petrol,
Removal and Installation).
P011700 Engine coolant temperature sensor 1
circuit low
Engine coolant temperature
(ECT) sensor 1 circuit: short
circuit to ground
Engine coolant temperature
(ECT) sensor 1 circuit: open
circuit
Engine coolant temperature
(ECT) sensor failure
Check the ECT sensor and circuits.
Refer to the electrical guides. Install a
new sensor as required.
REFER to:
Engine Coolant Temperature
(ECT) Sensor
(303-14A Electronic
Engine Controls - I6 3.2L Petrol,
Removal and Installation).
P011800 Engine coolant temperature sensor 1
circuit high
Engine coolant temperature
(ECT) sensor 1 circuit: short
circuit to power
Engine coolant temperature
(ECT) sensor 1 circuit: open
circuit
Engine coolant temperature
(ECT) sensor failure
Check the ECT sensor and circuits.
Refer to the electrical guides. Install a
new sensor as required.
REFER to:
Engine Coolant Temperature
(ECT) Sensor
(303-14A Electronic
Engine Controls - I6 3.2L Petrol,
Removal and Installation).
P012500 Insufficient coolant temperature for
closed-loop fuel control
Damaged/Faulty coolant
thermostat
Cooling fan fault
Engine coolant temperature
sensor circuit: high
resistance
Engine coolant temperature
sensor failure
Check the cooling system operation.
Rectify as necessary. Check for DTCs
indicating a coolant temperature
sensor fault.
P012800 Coolant thermostat (coolant
temperature below thermostat
regulating temperature)
Damaged/Faulty coolant
thermostat
Cooling fan fault
Engine coolant temperature
sensor circuit: high
resistance
Engine coolant temperature
sensor failure
Check the cooling system operation.
Rectify as necessary. Check for DTCs
indicating a coolant temperature
sensor fault.
P145C68 Fan system component error
Cooling fan control module
temperature failure
No action necessary. Code for
information only.
P145D68 Fan system component error B
Cooling fan control module
high temperature indication
No action necessary. Code for
information only.
Pinpoint Tests
PINPOINT TEST A : LOSS OF COOLANT
TEST
CONDITIONS
DETAILS/RESULTS/ACTIONS
A1: VISUAL INSPECTION
Visually inspect for loss of coolant.
Carry out a system pressure test. See component tests in this section.
Is the engine cooling system leaking?
Yes
Rectify the leak as indicated by the test result. Top-up and fill the cooling system to the correct
level with the correct specification fluid as necessary.
REFER to:
Specifications
(303-03A Engine Cooling - I6 3.2L Petrol, Specifications) /
Cooling System Draining, Filling and Bleeding
(303-03A Engine Cooling - I6 3.2L Petrol, General
Procedures).
TEST the system for correct operation.
No
Verify the customer complaint.
1
1
1
1
PINPOINT TEST B : THE ENGINE OVERHEATS
TEST
CONDITIONS
DETAILS/RESULTS/ACTIONS
B1: CHECK COOLANT
WARNING: The cooling system is pressurized! Ensure the reservoir cap is never released until the system has cooled.
Failure to follow these instructions may result in personal injury.
Check the coolant level and condition.
Does the system contain sufficient coolant of the correct specification?
Yes
GO to B2
.
No
Top-up and fill the cooling system to the correct level with the correct specification fluid as
necessary.
REFER to:
Specifications
(303-03A Engine Cooling - I6 3.2L Petrol, Specifications) /
Cooling System Draining, Filling and Bleeding
(303-03A Engine Cooling - I6 3.2L Petrol, General
Procedures).
Check for coolant loss.
GO to B1
.
B2: CHECK COOLANT EXPANSION TANK PRESSURE CAP
Check the coolant expansion tank pressure cap for damage/correct operation. REFER to the coolant
expansion tank pressure cap pressure test in this section.
Is the coolant expansion tank pressure cap operating correctly?
Yes
GO to B3
.
No
INSTALL a new coolant expansion tank pressure cap. TEST the system for correct operation.
B3: CHECK THERMOSTAT
Check the thermostat for correct operation. REFER to the thermostat component test in this
section.
Is the thermostat operating correctly?
Yes
Check for correct operation of cooling fans, circuits, sensors, modules, etc.
REFER to:
Electronic Engine Controls
(303-14A Electronic Engine Controls - I6 3.2L Petrol, Diagnosis
and Testing).
No
INSTALL a new thermostat.
REFER to:
Thermostat
(303-03A Engine Cooling - I6 3.2L Petrol, Removal and Installation).
TEST the system for correct operation.
PINPOINT TEST C : THE ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE
TEST
CONDITIONS
DETAILS/RESULTS/ACTIONS
C1: CHECK THERMOSTAT
Check the thermostat for correct operation. REFER to the thermostat component test in this
section.
Is the thermostat operating correctly?
Yes
Check for correct operation of cooling fans, circuits, sensors, modules, etc.
REFER to:
Electronic Engine Controls
(303-14A Electronic Engine Controls - I6 3.2L Petrol,
Diagnosis and Testing).
No
INSTALL a new thermostat.
REFER to:
Thermostat
(303-03A Engine Cooling - I6 3.2L Petrol, Removal and Installation).
TEST the system for correct operation.
Component Tests
Cooling System Pressure Test
WARNING: Never, under any circumstances, remove the coolant expansion tank pressure cap while the engine is
operating. To avoid having scalding hot water or steam blow out of the cooling system, use extreme care when removing
the coolant expansion tank pressure cap from a hot cooling system. W ait until the engine has cooled, then wrap a thick
cloth around the coolant expansion tank pressure cap and turn it slowly until the pressure begins to release, step back
while the pressure is released from the system. W hen certain all the pressure has been released (still with a cloth) turn
and remove the coolant expansion tank pressure cap. Failure to follow these instructions may result in damage to the
cooling system, engine and/or cause personal injury.
1. Switch the engine off.
1.
2. Open the hood and install protective fender covers.
2.
3. Carefully remove the coolant expansion tank pressure cap from the coolant expansion tank to relieve pressure in
the cooling system. Add coolant to coolant expansion tank as necessary.
3.
4. Install the pressure tester equipment to the cooling system following manufacturers instructions. Reinstall the
coolant expansion tank pressure cap (if pressure test equipment is not installed to the coolant expansion tank).
4.
5. Pressurize the cooling system to the coolant expansion tank pressure cap lower limit.
5.
6. Observe the gauge reading for approximately two minutes. Pressure should not drop during this time.
If system holds pressure, continue from step 8.
6.
If the pressure drops, check the complete cooling system for leaks. Also refer to engine system checks if a
leak cannot be located in the cooling system. Correct any leaks found and recheck the system.
7. Release the system pressure and remove the pressure test equipment. Check the coolant level. Replenish as
necessary with the correct coolant solution.
REFER to:
Specifications
(303-03A Engine Cooling - I6 3.2L Petrol, Specifications).
7.
8. Check the radiator overflow hose for any obstructions which may block the flow of coolant either to or from the
coolant expansion tank.
8.
9. Conduct the coolant expansion tank pressure cap pressure test in this section.
9.
Coolant Expansion Tank Pressure Cap Pressure Test
WARNING: Never, under any circumstances, remove the coolant expansion tank pressure cap while the engine is
operating. To avoid having scalding hot water or steam blow out of the cooling system, use extreme care when removing
the coolant expansion tank pressure cap from a hot cooling system. W ait until the engine has cooled, then wrap a thick
cloth around the coolant expansion tank pressure cap and turn it slowly until the pressure begins to release, step back
while the pressure is released from the system. W hen certain all the pressure has been released (still with a cloth) turn
and remove the coolant expansion tank pressure cap. Failure to follow these instructions may result in damage to the
cooling system, engine and/or cause personal injury.
1. Remove the expansion tank pressure cap from the coolant expansion tank.
1.
2. Use water to clean cap in area of rubber seal and vacuum relief valve. Following manufacturers instructions,
install the coolant expansion tank pressure cap to the pressure tester.
2.
• NOTE: If the pressure tester is pressurised too quickly, an erroneous pressure reading may result.
3. Slowly pressurise the system until the pressure gauge reading stops increasing, and note highest pressure
reading obtained.
3.
4. Release pressure and repeat Step 3 at least twice to make sure the pressure test reading is repeatable and
within specification.
4.
5. If the pressure test gauge readings are not within specification, install a new coolant expansion tank pressure
cap.
5.
Thermostat Test
Remove the thermostat
REFER to:
Thermostat
(303-03A Engine Cooling - I6 3.2L Petrol, Removal and Installation).
Inspect for visible damage, note its opening temperature and immerse it in water. Heat the water until this temperature is
reached. The thermostat should begin to open. If it does not begin to open, install a new thermostat.
REFER to:
Thermostat
(303-03A Engine Cooling - I6 3.2L Petrol, Removal and Installation).
If thermostat begins to open, continue to heat the water until the thermostat fully opens, 5.8 mm (0.2 in) or more off the
seat. If it does not fully open, install a new thermostat.
REFER to:
Thermostat
(303-03A Engine Cooling - I6 3.2L Petrol, Removal and Installation).
Radiator Leak Test - Removed from the Vehicle
CAUTION: Do not leak test an aluminium radiator in the same water that is used to leak test copper/brass radiators.
Flux and caustic cleaners may be present in the test water which will corrode aluminium. If a separate tank is not
available, drain and rinse the test tank before testing an aluminium radiator.
Clean the radiator before leak testing to prevent contamination of the test tank. Leak test the radiator in clean water with
138 kPa (20 psi) air pressure.
Engine Cooling - I6 3.2L Petrol - Cooling System Draining, Filling and
Bleeding
General Procedures
WARNING: Since injury such as scalding could be caused by escaping steam or coolant, do not remove the filler cap
from the coolant expansion tank while the system is hot.
Position the vehicle on a lift.
1.
Set the heater controls to maximum.
2.
Remove the engine undershield.
Refer to:
Engine Undershield
(501-02 Front End Body Panels,
Removal and Installation).
3.
Disconnect the battery ground cable.
Refer to:
Specifications
(414-00 Battery and Charging System -
General Information, Specifications).
4.
5.
WARNING: Since injury such as scalding could be caused by
escaping steam or coolant, do not remove the filler cap from the
coolant expansion tank while the system is hot.
Remove the coolant expansion tank cap.
5.
Position a container to collect the fluid.
6.
Attach a hose to the radiator drain tap. Open the tap.
7.
Loosen the engine drain tap.
8.
Close the radiator drain tap and remove the hose.
9. Tighten the engine drain tap.
10.
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