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Home >> Buick >> 2019 >> Encore Preferred, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC P26E4-P26E6 >> Component Testing

Component Testing

Relay Test

  1. Ignition/Vehicle - Off
  2. Remove the component:KR27C Starter Pinion Solenoid Actuator 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:KR27C Starter Pinion Solenoid Actuator Relay

    • Go to next step: If between 70 and 110 ohms 
  4. Test for infinite resistance between the test points:
    • Component terminal 30/3 & 85/1
    • Component terminal 30/3 & 86/2
    • Component terminal 30/3 & 87/5
    • Component terminal 85/1 & 87/5
    • Component terminal 86/2 & 87/5
    • If less than infinite resistance 

      Replace the component:KR27C Starter Pinion Solenoid Actuator 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:KR27C Starter Pinion Solenoid Actuator Relay

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