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code 68 is pump motor circuit locked or shorted to ground.look for the EHCU(electro hydraulic control unit). there should be a two wire connector connecting it to the pump motor with a red and black wire. check the connections between the EHCU and Motor. check voltage at 2 pin connector with multimeter(red wire 12 volt fusible link, black wire ground). if the multimeter rerads less than 9 volts check ground (wire and ground wire(black with white stripe pin j on 10 pin connector)on EHCU. clear trouble codes: turn ignition on. use jumper wire ground term h and a for 2 seconds. remove jumper wire for one second. repeat jumper wire for 2 seconds. code should clear.