Nissan Rogue (T33) 2021-Present Service Manual: Kr15ddt :: Symptom Diagnosis. Overheating Cause Analysis
Overheating Cause Analysis
Troubleshooting Chart
| Symptom | Check items | |||
|---|---|---|---|---|
| Cooling system parts malfunction | Poor heat transfer | Water pump malfunction | Worn or loose drive belt | — |
| Thermostat stuck closed | Coolant circulation | |||
| Damaged fins | Dust contamination or rock clogging | |||
| Mechanical damage | ||||
| Clogged radiator cooling tube | Excess foreign material (rust, dirt, sand, etc.) | |||
| Reduced air flow | Cooling fan does not operate | Engine cooling fans | — | |
| High resistance to fan rotation | ||||
| Damaged fan blades | ||||
| Damaged radiator shroud | — | Radiator shroud | — | |
| Improper coolant mixture ratio | — | Coolant viscosity | — | |
| Poor coolant quality | — | Periodic maintenance | — | |
| Insufficient coolant | Coolant leaks | Cooling hose | Loose clamp | |
| Cracked hose | ||||
| Water pump | Poor sealing | |||
| Reservoir tank cap | Loose | |||
| Poor sealing | ||||
| Radiator | O-ring for damage, deterioration or improper fitting | |||
| Cracked radiator tank | ||||
| Cracked radiator core | ||||
| Reservoir tank | Cracked reservoir tank | |||
| Overflowing reservoir tank | Exhaust gas leaks into cooling system | Cylinder head deterioration | ||
| Cylinder head gasket deterioration | ||||
| Except cooling system parts malfunction | — | Overload on engine | Abusive driving | High engine rpm under no load |
| Driving in low gear for extended time | ||||
| Driving at extremely high speed | ||||
| Powertrain system malfunction | — | |||
| Installed improper size wheels and tires | ||||
| Dragging brakes | ||||
| Improper ignition timing | ||||
| Blocked or restricted air flow | Blocked radiator grille | Installed car brassiere | — | |
| Mud contamination or paper clogging | ||||
| Blocked bumper | ||||
| Blocked radiator | ||||
| Blocked condenser | ||||
| Installed large fog lamp | ||||
Other materials:
Basic Inspection. Diagnosis and Repair Work Flow
Work Flow
OVERALL SEQUENCEDETAILED FLOWGET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the
condition and the environment when the incident/malfunction occurs).
Check operation condition of the function that is malfunctioning.
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G ...
Charge Air Cooler Electric Water Pump Relay
Component Inspection
CHECK ELECTRIC WATER PUMP RELAY
Turn ignition switch OFF.
Remove electric water pump relay.
Check the continuity between electric water pump relay terminals under the following conditions.
Terminals Conditions Continuity
and
12 V direct current supply ...
Dtc/circuit Diagnosis. Door Mirror Defogger Lh
Component Function Check
CHECK DOOR MIRROR DEFOGGER LH FUNCTION
CONSULT
Ignition switch ON.
Select “Rear defogger” in “Active test” mode of "BCM".
Touch “On”.
Check that the driver side door mirror glass is getting warmer.
NOTE:
When glass is hot, never start ins ...