Electronic Control Unit (Ecu)

Access ECU. See Figure. The ECU is mounted under the center console, in front or back of shifter. Turn ignition on. Backprobing ECU harness connector with DVOM, check voltage between designated terminals. Voltage should be as specified. Refer to the appropriate SHIFT LOCK SYSTEM PIN VOLTAGES  table. For circuit identification, see appropriate wiring diagram in WIRING DIAGRAMS .