2007 ISUZU KB P190 Workshop Repair Manual

Page 5281 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-343 
TROUBLESHOOTING 
SPEEDOMETER 
1.  Speedometer and odometer do not function  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
  
Replace the vehicle speed 
sensor

Page 5282 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-344  ELECTRICAL-BODY AND CHASSIS 
3.  Speedometer pointer jumps erratically  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
Replace the vehicle speed  
sensor, or repair an open 
circuit in the c

Page 5283 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-345 
TACHOMETER 
1.  Meter pointer fluctuates  
  (May be wide fluctuation)  
 
  
Replace the meter assembly 
  
Tachometer malfunction 
 
NG 
  
Use a meter tester to

Page 5284 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-346  ELECTRICAL-BODY AND CHASSIS 
TEMPERATURE GAUGE AND THERMO UNIT (4JA1T(L), 4JH1-TC, C24SE) 
1.  No temperature indicates at all  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
  
Replace the

Page 5285 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-347 
ENGINE COOLANT TEMPERATURE GAUGE (4JJ1-TC/4JK1-TC) 
Refer to “Inspection and Repair” in this Manual for a detailed description of the coolant temperature gauge

Page 5286 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-348  ELECTRICAL-BODY AND CHASSIS 
TEMPERATURE GAUGE AND THERMO UNIT (HFV6) 
1.  No temperature indicates at all  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
  
Replace the thermo unit 
  
Ther

Page 5287 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-349 
FUEL GAUGE AND FUEL TANK UNIT (C24SE, 4JJA1T(L), 4JH1-TC, 4JJ1-TC/4JK1-TC) 
1.  No fuel level indicates at all  
 
Checkpoint  Trouble  Cause  Countermeasure

Page 5288 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-350  ELECTRICAL-BODY AND CHASSIS 
FUEL GAUGE AND FUEL TANK UNIT (HFV6) 
1.  No fuel level indicates at all  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
  
Replace the tank unit 
  
Open circui