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Home >> Jaguar >> 2007 >> XJ8 Base >> Repair and Diagnosis >> Engine Performance >> System >> Acceleration Control (2003.5-09) >> Diagnosis and Testing >> Acceleration Control >> PINPOINT TEST G240070p4 : DTC P1251, P1658, P1631, P1657 >> G240070t17 : CHECK THE ECM POWER SUPPLY FROM THE THROTTLE MOTOR RELAY

G240070t17 : CHECK THE ECM POWER SUPPLY FROM THE THROTTLE MOTOR RELAY

  1. Measure the voltage between the throttle motor relay connector FH 32D pin 5 (NR) and ground.
    • Is the voltage greater than 10 volts? 
  1. -> Yes :  GO to G240070t18 : CHECK CONTINUITY OF THE ECM POWER SUPPLY WIRE FROM THE THROTTLE MOTOR RELAY .
  2. -> No :  GO to G240070t19 : CHECK FUSE 18 IN THE FRONT POWER DISTRIBUTION BOX (FPDB) .
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