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Code 8 - No Dump Solenoid During Self-Check

  1. Turn ignition off. Disconnect diagnostic connector (Black/Orange wire) from its mating half (Red wire). Reconnect diagnostic connector and turn ignition on. If RABS warning light illuminates, go to next step. If warning light does not illuminate, go to INTERMITTENT DIAGNOSIS  .
  2. Turn ignition off. Disconnect negative battery cable. Disconnect control module connector. See COMPONENT LOCATIONS  . Check resistance between terminal No. 8 (Yellow/Light Green wire) of control module connector and chassis ground.
  3. Check resistance between ground and terminal No. 14 (Yellow/Light Green wire) of control module connector. See Figure . If resistance is 1-3 ohms in both tests, leave control module disconnected and go to step 7). If resistance is not 1-3 ohms in either test, leave control module disconnected and go to next step.
  4. Disconnect valve assembly connector. Check resistance between terminals No. 3 and No. 4 of valve assembly connector. See Figure . If resistance is greater than one ohm, leave connector disconnected and go to next step. If resistance is one ohm or less, replace valve assembly and go to step 8).
  5. Check resistance between terminal No. 8 (Yellow/Light Green wire) of control module harness connector and terminal No. 4 of valve assembly harness connector.
  6. Check resistance between terminal No. 14 (Yellow/Light Green wire) of control module harness connector and terminal No. 4 of valve assembly harness connector. If resistance is less than 10 ohms in either tests, repair short in appropriate Yellow/Light Green wire. After repairs, go to step 8). If resistance is greater than 10 ohms in either test, information is conflicting. Repeat step  2 .
  7. Ensure all preceding diagnostic steps have been completed and that involved wiring integrity has been verified. If steps have not been completed, go to last diagnostic step completed and continue from there. If all diagnostic steps have been completed, replace control module and go to next step. If control module has already been replaced with no resolution of problem, replace valve assembly and go to next step.
  8. Turn ignition off. Reconnect negative battery cable. Ensure all connectors are connected and secure. Retrieve trouble codes. See RETRIEVING TROUBLE CODES  . If Code 16 is present, go to CODE 16 under TEST DRIVE  . If Code 8 is present, go to next step. If any other trouble code is present, go to corresponding test for appropriate trouble code.
  9. Ensure all preceding diagnostic steps have been completed and that involved wiring integrity has been verified. If steps have not been completed, go to last diagnostic step completed and continue from there. If all diagnostic steps have been completed, go to next step.
  10. If previous diagnostic steps have been completed, problem is most likely wiring related. Go to INTERMITTENT DIAGNOSIS  and perform tests on affected circuits. If problem still exists, go to step 7). If problem is resolved, repair is complete. Go to CODE 16 under TEST DRIVE  .
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