Cruise control – fault diagnosis

CRUISE CONTROL – FAULT DIAGNOSIS

2F

3F

C572

CONDITIONS Ignition Switch

Position: II

Turn a drive wheel by hand

RESULTS

= 4V Fluctuating

OK PROBLEM CAUSE - Y, YG Wire - Body Electrical Control Module (BECM)

4F

C572

CONDITIONS Ignition Switch

Position: 0

RESULTS

Less than 1 ohm

Z249 Cruise Control Converter/ Inverter Module

OK PROBLEM CAUSE - OY, YO Wire

         
      

       
         

     
         
 

Z132 Engine Control Mod-

V

ule (ECM)

Y

OK

4F

         
      

       
         

     
         
 

C241D Z132

Engine Control Module (ECM)

OY YO

OK

5F