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Symptom: P0629-FUEL PUMP RELAY CONTROL CIRCUIT HIGH When Monitored and Set Condition: P0629-FUEL PUMP RELAY CONTROL CIRCUIT HIGH When Monitored: With the ignition on. Set Condition: If the PCM detects high voltage on the Fuel Pump Relay Control circuit for more than 3 seconds, it will set this DTC. POSSIBLE CAUSES FUEL PUMP RELAY INTERMITTENT OPERATION INTERMITTENT CONDITION FUEL PUMP RELAY (K31) FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE PCM TEST ACTION APPLICABILITY 1 Turn the ignition on. t, actuate the Fuel Pump Relay. Is the Fuel Pump Relay operating? All Yes → Go To 2 No → Go To 4 2 Turn the ignition on. t, actuate the Fuel Pump Relay. Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is All Yes → Repair as necessary. Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L. No → Go To 3 166 DRIVEABILITY - 1.6L GAS |