DTC B1451: Compressor Solenoid Circuit [12/2013 - 11/2016]: Procedure

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   for 2GR-FE	A
   for 1AR-FE	B

Result:  2

B 

See step  5

Result:  1

A 

See step  2

1. Disconnect the C16 cooler compressor assembly (compressor solenoid) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Cooler Compressor Assembly (Compressor Solenoid))

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-1 (SOL-) - C16-2 (SOL+)	25°C (77°F)	10.1 to 11.1 Ω

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID). Refer to  REMOVAL [12/2013 - 11/2016] 

Result:  1

OK 

See step  3

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-1 (SOL-) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  4

1. Disconnect the F80 air conditioning amplifier assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-2 (SOL+) - F80-2 (SOL+)	Always	Below 1 Ω
   C16-2 (SOL+) - Body ground	Always	10 kΩ or higher

   Result

   Result	Proceed to
   NG	A
   OK (When troubleshooting according to Problem Symptoms Table)	B
   OK (When troubleshooting according to the DTC)	C

Result:  1

A 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  2

B 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - 11/2016] 

Result:  3

C 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [12/2013 - ] 

1. Disconnect the C16 compressor assembly with pulley (compressor solenoid) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Compressor Assembly with Pulley (Compressor Solenoid))

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-1 (SOL-) - C16-2 (SOL+)	25°C (77°F)	10.1 to 11.1 Ω

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE COMPRESSOR ASSEMBLY WITH PULLEY (COMPRESSOR SOLENOID). Refer to  REMOVAL [12/2013 - 11/2016] 

Result:  1

OK 

See step  6

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-1 (SOL-) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  7

1. Disconnect the F80 air conditioning amplifier assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C16-2 (SOL+) - F80-2 (SOL+)	Always	Below 1 Ω
   C16-2 (SOL+) - Body ground	Always	10 kΩ or higher

   Result

   Result	Proceed to
   NG	A
   OK (When troubleshooting according to Problem Symptoms Table)	B
   OK (When troubleshooting according to the DTC)	C

Result:  1

A 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  2

B 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - 11/2016] 

Result:  3

C 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [12/2013 - ]