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1998 HONDA PASSPORT
3.2L V6•AWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor495Torque3395Fluid10DTC1647Battery1Maintenance0Recalls6
P0945high severityPowertrain

Hydraulic Pump Relay Circuit/Open

on 1998 Honda Passport 3.2L V6 · AWD

What this code means

The control circuit for the transmission hydraulic pump relay is open or malfunctioning. The PCM cannot properly control the hydraulic pump through the relay.

Symptoms

  • Transmission slipping or no drive
  • Transmission warning light on
  • Harsh or delayed engagement

Common causes

  • Faulty hydraulic pump relay
  • Open or broken wiring in relay circuit
  • Corroded connector
  • Faulty PCM/TCM

Diagnostic steps

  1. Inspect pump relay and connector
  2. Check relay circuit wiring for opens
  3. Test relay operation and coil resistance
  4. Verify PCM control signal to relay
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