Toyota Corolla Cross: Cooling System
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Do not remove the reserve tank cap and air release valve while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
PROCEDURE
1. INSPECT FOR COOLANT LEAK
CAUTION:
Do not remove the reserve tank cap and air release valve while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
(a) Remove the reserve tank cap.
| (b) Add engine coolant to the FULL line of the radiator reserve tank assembly. |
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(c) Install a radiator cap tester.
(d) Warm up the engine.
(e) Pump the radiator cap tester to 122 kPa (1.2 kgf/cm2, 18 psi), and then check that the pressure does not drop.
- If the pressure drops, check the hoses, radiator assembly and engine water pump assembly for leaks.
- If there are no signs of external engine coolant leaks, check the heater core, cylinder block sub-assembly and cylinder head sub-assembly.
(f) Remove the radiator cap tester.
(g) Install the reserve tank cap.
2. INSPECT RADIATOR RESERVE TANK ENGINE COOLANT LEVEL
| (a) Check that the engine coolant level is between the LOW line and FULL line when the engine is cold. If the engine coolant level is low, check for leaks and add engine coolant to the FULL line. NOTICE:
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3. INSPECT ENGINE COOLANT QUALITY
CAUTION:
Do not remove the reserve tank cap and air release valve while the engine or radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
(a) Remove the reserve tank cap.
(b) Check that there are no excessive deposits of rust or scale around the reserve tank cap and water filler hole. Also, the engine coolant should be free of oil.
If excessively dirty, clean the engine coolant passage and replace the engine coolant.
(c) Install the reserve tank cap.
READ NEXT:
Flow Shutting Valve
InspectionINSPECTION PROCEDURE
1. INSPECT FLOW SHUTTING VALVE (WATER VALVE) (a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT
CAUTION: Do not remove the reserve tank cap and air release valve while the engine and radiator assembly are still hot. Pressurized, hot engine coolant
SEE MORE:
Knock Sensor 1 Bank 1 or Single Sensor Circuit Short to Battery or Open (P032515)
DESCRIPTION Refer to DTC P032511. Click here
HINT: When DTC P032515 is stored, the ECM enters fail-safe mode. During fail-safe mode, the ignition timing is delayed to its maximum retardation. Fail-safe mode continues until the ignition switch is turned off.
DTC No. Detection Item
DT
Drive Motor "B" System Circuit Current Out of Range (P0C021D)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when the rear motor control system is malfunctioning and current does not flow as commanded. The cause of this malfunction may be one of the following:
Area Main Malfunction Description
Inside of inverter
Inverter with c
