FJ Cruiser 4WD V6-4.0L (1GR-FE) (2007)
defective or normal. Also, confirm the problem symptoms at the same time. Refer to the problem symptoms table for each system to narrow down the
possible causes.
a. VIBRATION METHOD:
When a malfunction seems to occur as a result of vibration.
1. PART AND SENSOR
Apply slight vibration with a finger to the part of the sensor suspected to be the cause of the problem, and check whether or not the
malfunction occurs.
NOTE: Applying strong vibration to relays may open them.
2. CONNECTORS
Slightly shake the connector vertically and horizontally.
3. WIRE HARNESS
Slightly shake the wire harness vertically and horizontally.
HINT: The connector joint and fulcrum of the vibration are the major areas that should be checked thoroughly.
b. HEAT METHOD:
When a malfunction seems to occur when the area in question is heated.
1. Heat the component that is the possible cause of the malfunction with a hair dryer or similar device. Check if the malfunction occurs.
NOTE:
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Do not heat to more than 60°C (140°F). Exceeding this temperature may damage components.
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Do not apply heat directly to the parts in the ECU.
c. WATER SPRINKLING METHOD: