Possible Causes

Possible causes are:

• Open circuit in White wire between main relay harness connector terminal "E" and EVAP system leak detection pump 4-pin harness connector terminal "A"
• Open circuit in Pink wire between EVAP system leak detection pump 4-pin harness connector terminal "D" and PCM 27-pin harness connector terminal "3Y"
• PCM malfunction
• Poor connection at EVAP system leak detection pump 4-pin harness connector or PCM 27-pin harness connector
• Short to ground circuit in Pink wire between EVAP system leak detection pump 4-pin harness connector terminal "D" and PCM 27-pin harness connector terminal "3Y"