2004 ISUZU TF SERIES Workshop Manual

Page 3097 of 4264

ISUZU TF SERIES 2004  Workshop Manual HEATER AND AIR CONDITIONING  1-87
 
MAGNETIC CLUTCH 
When the A/C switch and the fan control knob (fan switch) are turned on with the engine running, current flows 
through the thermostat and the comp

Page 3098 of 4264

ISUZU TF SERIES 2004  Workshop Manual 1-88  HEATER AND AIR CONDITIONING
 
4JA1 – L 
  
 
 RTW410LF000401

Page 3099 of 4264

ISUZU TF SERIES 2004  Workshop Manual HEATER AND AIR CONDITIONING  1-89
 
4JH1 – TC 
  
 
 RTW410LF000101

Page 3100 of 4264

ISUZU TF SERIES 2004  Workshop Manual 1-90  HEATER AND AIR CONDITIONING
 
MAGNETIC CLUTCH DOES NOT RUN (4JA1L/4JH1-TC) 
 
 
 
Replace 
YES 

 Are the A/C thermo (X-15) and heater & A/C (X-11) 
and A/C compressor (X-14) relay OK? 
 Are t

Page 3101 of 4264

ISUZU TF SERIES 2004  Workshop Manual HEATER AND AIR CONDITIONING  1-91
 
 
 
 
 
Open circuit between the engine 
harness connector terminal No.1 (E-3) 
and engine room harness connector 
terminal No.2 (X-14). 
YES 

 Is there battery v

Page 3102 of 4264

ISUZU TF SERIES 2004  Workshop Manual 1-92  HEATER AND AIR CONDITIONING
 
 
 
 
YES 
 Disconnect the condenser fan relay connector 
condenser fan. 
YES 

 Is there battery voltage between the engine 
room harness connector terminal NO.3

Page 3103 of 4264

ISUZU TF SERIES 2004  Workshop Manual HEATER AND AIR CONDITIONING  1-93
 
 
 
YES 

 Disconnect the A/C switch. 

 Is there battery voltage between the chassis side 
harness connector terminal No. 6 (B-57) and ground (C-
109)? 
Open cir

Page 3104 of 4264

ISUZU TF SERIES 2004  Workshop Manual 1-94  HEATER AND AIR CONDITIONING
 
6VE1 
  
 
 RTW410XF000201