Toyota Tundra. Manual — part 2410
Fig. 76: Identifying Terminals Of D60 Air Conditioning Compressor Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Disconnect the magnetic clutch connector.
c. Measure the resistance according to the value(s) in the table below.
Standard Resistance
TESTER CONNECTION SPECIFIED CONDITION CHART
NG: REPAIR AIR CONDITIONING COMPRESSOR
OK: Go to Next Step
7. INSPECT MAGNETIC CLUTCH
a. Measure the resistance according to the value(s) in the table below.
Standard Resistance
TESTER CONNECTION SPECIFIED CONDITION CHART
Tester Connection
Condition Specified Condition
3 (MG+) -1
Always
Below 1 ohms
3 (MG+) or 1 - Body ground Always
10 kohms or higher
Tester Connection Condition Specified Condition
1 - Body ground
Always
3.4 to 3.8 ohms
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
b. When connector terminal 1 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.
Result
RESULT REFERENCE
Fig. 77: Identifying Terminals Of Magnetic Clutch Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
B: REPLACE MAGNETIC CLUTCH (See REMOVAL )
C: REPLACE MAGNETIC CLUTCH (See REMOVAL )
A: Go to Next Step
8. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING COMPRESSOR - ENGINE
ROOM RELAY BLOCK)
a. Disconnect the D60 air conditioning compressor connector.
Result
Proceed to
OK
A
NG (for 2UZ-FE)
B
NG (for 3UR-FE or 3UR-FBE)
C
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
Fig. 78: Identifying Terminals Of D60 Air Conditioning Compressor Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Remove the magnetic clutch relay (MG CLT) from the engine room relay block.
c. Measure the resistance according to the value(s) in the table below.
Standard Resistance
TESTER CONNECTION SPECIFIED CONDITION CHART
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to Next Step
9. CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK - BATTERY)
Tester Connection
Condition
Specified
Condition
D60-3 (MG+) - Engine room relay block magnetic clutch relay
terminal 3
Always
Below 1 ohms
D60-3 (MG+) or Engine room relay block magnetic clutch relay
terminal 3 - Body ground
Always
10 kohms or
higher
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
a. Remove the magnetic clutch relay (MG CLT) from the engine room relay block.
Fig. 79: Identifying Magnetic Clutch Relay (MG CLT)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the voltage according to the value(s) in the table below.
Standard Voltage
TESTER CONNECTION SPECIFIED CONDITION CHART
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE AIR CONDITIONING AMPLIFIER (See REMOVAL )
ECU POWER SOURCE CIRCUIT
DESCRIPTION
This circuit provides power to operate the air conditioning amplifier.
WIRING DIAGRAM
Tester Connection
Condition
Specified
Condition
Engine room relay block magnetic clutch relay terminal 5 - Body
ground
Always
11 to 14 V
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
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