Ignition "OFF" & Engine "OFF".

Connect RPS & Acceleration pedal sensor connector.

Ignition " ON" & Engine "OFF".

Monitor that DTC P1524 is retrieved again after connecting RPS & APS.

Is the DTC P1524 retrieved again ?

YES

▶ Substitute with a known-good RPS or/and APS and check for proper operation.

If the problem is corrected, replace RPS or/and APS and then go to "Verification of Vehicle Repair" procedure.

NO

▶ Substitute with a known-good ECM and check for proper operation.

If the problem is corrected, replace ECM and then go to "Verification of Vehicle Repair" procedure.