5016/3 EPA10 COOLANT VALVE SUPPLY VOLTAGE FAILED HIGH

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Description High Side Digital Output Circuit Shorted to Power
Monitored Parameter High Side Digital Output
Typical Enabling Conditions Always on
Monitor Sequence None
Execution Frequency Continuous when enabling conditions met
Typical Duration 2 Seconds
Dash Lamps MIL, CEL
Engine Reaction None
Verification Key Cycle

TROUBLESHOOTING:

  1. Check for multiple codes. Is fault code SPN 3216/FMI 13 or SPN 3490/FMI (any) present along with SPN 5016/FMI 3?
    1. Yes; repair the other fault code first.COOLANT VALVE DIAGRAM
  2. Turn the ignition OFF.
  3. Disconnect the Aftertreatment Control Module (ACM) 120-pin connector.
  4. Inspect the ACM 120-pin harness connector for bent, spread or corroded pins. Is any damage found?
    1. Yes; repair as necessary. Verify repair.
    2. No; Go to step 5.
  5. NOTE:  Multiple fault codes will set with the ACM 120-pin connector disconnected. Disregard other fault codes at this time.
  6. Turn the ignition ON (key ON, engine OFF) and clear fault codes. Does SPN 5016/FMI 3 become active?
    1. Yes; replace the ACM. Refer to OEM procedures.
    2. No; Go to step 6.
  7. Measure the voltage between pin 19 of the 120-pin ACM connector, harness side, and battery ground. Is any voltage present?
    1. Yes; repair the short to power between pin 19 of the 120-pin ACM connector and pin 2 of the DEF coolant valve connector. Verify repair.
    2. No; Go to step 7.
  8. Measure the voltage between pin 50 of the 120-pin ACM connector, harness side, and battery ground. Is any voltage present?
    1. Yes; repair the short to power between pin 50 of the 120-pin ACM connector and pin 1 of the NOx inlet sensor connector. Verify repair.
    2. No; Go to step 11.
  9. Is the vehicle equipped with a purge-in-process indicator?1. Yes; Go to step 9.
  10. Measure the voltage between pin 106 of the 120-pin ACM connector, harness side, and battery ground. Is any voltage present?
    1. Yes; repair the short to power between pin 106 of the 120-pin ACM connector and pin 2 of the DEF Purge-in-Process indicator. Verify repair.
    2. No; Go to step 10.
  11. NOTE:  ACM Pin 110 is not populated from the factory. The 120-pin ACM connector should be equipped with a cavity plug in the 120-pin connector cavity #110.
  12. Inspect connector cavity#110 of the 120-pin ACM connector, harness side. Is a wire populated in cavity #110?
    1. Yes; repair the short to power on pin 110 of the 120-pin ACM connector. Repair connector as needed. Verify repair.
    2. No; replace the ACM. Repair the connector as needed. Verify repair.
  13. Inspect connector cavity #106 of the 120-pin ACM connector, harness side. Is a wire populated in connector cavity #106?
    1. Yes; repair the short to power on pin 106 of the 120-pin ACM connector. Repair connector as needed. Verify repair.
    2. No; Go to step 12.
  14. Inspect connector cavity#110 of the 120-pin ACM connector, harness side. Is a wire populated in cavity #110?
    1. Yes; repair the short to power on pin 110 of the 120-pin ACM connector. Repair connector as needed. Verify repair.
    2. No; replace the ACM. Verify repair.

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