145 - MiTo   1.4 16v TJet   Gas injectors supply command   P1658   
 

 

 

 

Test results
 

1

  

COMPONENT CONCERNED

  

ENGINE MANAGEMENT CONTROL UNIT AND LPG CONTROL UNIT WIRING CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Engine management control unit and LPG control unit wiring

  

Check for presence of short circuit to earth in the wiring between PIN 60 of the engine management control unit and PIN 43 of the LPG control unit

  

Go to Step 2

  

Presence of short circuit to earth

  

Restore correct insulation to earth
 

2

  

COMPONENT CONCERNED

  

ENGINE MANAGEMENT CONTROL UNIT AND LPG CONTROL UNIT WIRING CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Engine management control unit and LPG control unit wiring

  

Check for presence of short circuit to Vbatt in the wiring between PIN 60 of the engine management control unit and PIN 43 of the LPG control unit

  

Go to Step 3

  

Presence of short circuit to Vbatt.

  

Restore correct insulation to +battery
 

3

  

COMPONENT CONCERNED

  

ENGINE MANAGEMENT CONTROL UNIT AND LPG CONTROL UNIT WIRING CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Engine management control unit and LPG control unit wiring

  

Check for presence of an open circuit in the wiring between PIN 60 of the engine management control unit and PIN 43 of the LPG control unit

  

End of diagnosis

  

Presence of open circuit

  

Restore the correct continuity for the wiring