CUSTOMER CONCERN After an extended drive, the warning light returns with DTCs P0117, P148F, and P261B even though the engine-coolant level is full and the system has been bled. CAUSE The engine electric water pump failed to maintain commanded rotation speed despite the supported power, ground, and control/feedback circuit checks. CORRECTION Remove and replace the failed engine electric water pump.

CUSTOMER CONCERN After extended driving, DTCs P0117, P148F and P261B set for engine-coolant temperature and electric water-pump performance. CAUSE The engine electric water pump had a broken impeller; at a 3,000-rpm command its feedback produced 15 pulses per command pulse instead of the three-pulse response seen with the replacement pump. CORRECTION Remove and replace the failed engine electric water pump, refill and bleed the cooling system, clear P0117, P148F and P261B, an