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Code 52: Parking Position Signal

NOTE: Refer to illustration for ECU connector and terminal identification. See Figure .
  1. Turn ignition switch to ON position. Using a DVOM, check voltage between ECU connector B60, terminal No. 9 (backprobe) and ground. With shifter in Park, voltage should be zero.
  2. Check voltage at terminal No. 9 with vehicle in all other shift positions. Voltage should be 8 volts or greater. If voltages are not as specified, go to next step. If voltages are as specified, check ECU connector terminals for good contact. Repair as necessary. If connector terminals are okay, replace ECU.
  3. Turn ignition switch to OFF position. Disconnect inhibitor switch connector located near transaxle dipstick. Using an ohmmeter, check resistance between inhibitor switch connector terminal No. 2 (Light Green wire) and ground. With shifter in Park, resistance should be zero ohms.
  4. Check resistance at terminal No. 2 with shifter in all other positions. Resistance should be one megohm or greater. If resistances are not as specified, replace inhibitor switch. If resistances are as specified, repair circuit between ECU and inhibitor switch as necessary.
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