Inspection Procedure

Fig 1: Inspecting Air Conditioning Amplifier(Lock)

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1. Remove A/C amplifier assy with connectors still connected.
2. Turn the ignition switch to the ON position.
3. Measure voltage according to the value(s) in the table below.

   Standard: 

   PULSE AND WAVEFORM CONDITION
   
   

   Tester connection	Condition	Specified condition
   A16-19 (LOCK) - A16-6 (SG)	Ignition switch ON Magnet clutch ON	Pulse generation (see waveform)

   Result: 

   RESULT REFERENCE
   
   

   A	NG
   B	OK (Checking from DTC)
   C	OK (When checking from the PROBLEM SYMPTOMS TABLE)

Fig 2: Waveform Graph

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1. B: REPLACE AIR CONDITIONING AMPLIFIER 
2. C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

A: Go to next step. 

1. Disconnect compressor connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard: 

   RESISTANCE CONDITION
   
   

   Terminal No.	Condition	Specified Condition
   A2-1 - A2-2	at 20°C (68°F)	165 to 205 Ω

Fig 3: Inspecting Cooler Compressor Assy

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1. NG: REPLACE COOLER COMPRESSOR ASSY 

OK: Go to next step. 

1. Check for open and short circuit in the harness and the connector between the cooler compressor assy and the A/C amplifier (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step. 

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE