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C-30, Torque Control Circuit > < C-28, Engine Speed Output Signal Circuit

Corsa B

 

 

 

 

C-29, Engine Load Signal Circuit  

C-29, Engine Load Signal Circuit  

Test  

Work Order Description  

Nominal Value  

T01  

Check: Short to Voltage/Ground/Interruption of Signal Circuit  

 

 

•  Ignition OFF  

•  Disconnect wiring harness connector from:  
X26 Multec & Automatic Transmission  

•  Engine idling  

•  Measure voltage between the following terminals:  
X26 Multec & Automatic Transmission  
Wiring Harness Connector (control unit side) Terminal C  
&  
Ground  
 
 
 

1 ... 2 V  

 

Yes: T02  

No: E03  

T02  

Check: Component  

 

 

•  Measure voltage between the following terminals:  
X26 Multec & Automatic Transmission  
Wiring Harness Connector (control unit side) Terminal C  
&  
Ground  

•  Engine running  

•  Accelerator pedal briefly actuated to full load stop  
 
 
 

greater than 8 V  

 

Yes: E01  

No: E02  

 

C-29, Engine Load Signal Circuit  

Result  

Cause Of Fault  

E01  

•  Short to voltage/ground/interruption of circuit between:  
X26 Multec & Automatic Transmission  
Wiring Harness Connector Terminal C  
&  
K85 Control Unit - Automatic Transmission  
Wiring Harness Connector Terminal 25  

or  

•  Following system/component is faulty:  
K85 Control Unit - Automatic Transmission  

 

 
 
 
 

E02  

•  Defective component:  
P34 Potentiometer - Throttle Valve  
or  
K57 Control Unit - Multec  

 

 
 
 
 

E03  

•  Short to voltage/ground/interruption of circuit between:  
X26 Multec & Automatic Transmission  
Wiring Harness Connector (control unit side) Terminal C  
&  
K57 Control Unit - Multec  
Wiring Harness Connector Terminal A9  

or  

•  Defective component:  
K57 Control Unit - Multec  

 

 
 
 
 

 
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C-30, Torque Control Circuit > < C-28, Engine Speed Output Signal Circuit