Component Testing

Relay Test

1. Ignition/Vehicle - Off
2. Remove the component:KR29 A/C Compressor Clutch Relay
3. Test for 70 to 110 ohms between the test points:Component terminal 85 & 86
   • If not between 70 and 110 ohms 

     Replace the component:KR29 A/C Compressor Clutch Relay

   • Go to next step: If between 70 and 110 ohms 
4. Test for infinite resistance between the test points:
   • Component terminal 30 & 85
   • Component terminal 30 & 86
   • Component terminal 30 & 87
   • Component terminal 85 & 87
   • If less than infinite resistance 

     Replace the component:KR29 A/C Compressor Clutch Relay

   • Go to next step: If infinite resistance 
5. Connect a 3 A fused jumper wire between the test points:Component terminal 86 & 12 V

   Connect a jumper wire between the test points:Component terminal 85 & Ground

6. Test for less than 2 ohms between the test points:Component terminal 30 & 87
   • If 2 ohms or greater 

     Replace the component:KR29 A/C Compressor Clutch Relay

   • Go to next step: If less than 2 ohms 
7. All OK.

Q2 A/C Compressor Clutch-Dynamic Test

1. Ignition/Vehicle - Off
2. Disconnect the electrical connector:Q2 A/C Compressor Clutch
3. Connect a jumper wire between the test points:Ground terminal 1 & Ground
4. Momentarily connect a 10 A fused jumper wire between the test points:Control terminal 2 & 12 V

   Verify the component turns On and Off when connecting and disconnecting the jumper wire:Q2 A/C Compressor Clutch

   • If the component does not turn On and Off 

     Replace the component:Q2 A/C Compressor Clutch

   • Go to next step: If the component turns On and Off 
5. All OK.