COMPRESSOR AND MAGNETIC CLUTCH (for 4WD): Inspection

INSPECT A/C COMPRESSOR

Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
E8-1 (MG+) - A-1	Always	Below 1 Ω
E8-1 (MG+) - Body ground	Always	10 kΩ or higher

If the resistance is not as specified, replace the A/C compressor.

Fig 1: Identifying A/C Compressor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT MAGNETIC CLUTCH

Measure the resistance of the connector.

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
A-1 - Body ground	Always	3.4 to 3.8 Ω

If the resistance is not as specified, replace the magnetic clutch.

When connector terminal A1 is connected to the positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch's operating sound can be heard, and 2) the magnetic clutch's hub and rotor lock.

Fig 2: Identifying Magnetic Clutch Connector (A)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT A/C COMPRESSOR (LOCK SENSOR)

Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Specified Condition
E8-2 (SSR+) - E8-5 (SSR-)	160 to 320 Ω

If the resistance is not as specified, replace the A/C compressor.

Fig 3: Identifying Connector Terminals (D8)

INSPECT A/C COMPRESSOR (SOLENOID)

Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
E8-3 (SOL+) - E8-6 (SOL-)	20°C (68°F)	10 to 11 Ω

If the resistance is not as specified, replace the A/C compressor.

Fig 4: Identifying A/C Compressor Connector Terminals