Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Disconnect the Inhibitor swtich connector.
Ignition KEY "ON"" & Engine "OFF".
Measure voltge between supplied power and ground at inhibitor circuit.
Specification : Approx. 12V
Connect the Inhibitor switch connector.
Ignition KEY "ON" & Engine "OFF".
Measure voltages between each terminal and chassis ground during shift lever changed "P, R, N, D".
Specification : See below "Signal Code Table"
  | P  | P-R  | R  | R-N  | N  | N-D  | D  | 
Signal "1"  | 12V  | 12V  | 0  | 0  | 0  | 0  | 0  | 
Signal "2"  | 0  | 12V  | 12V  | 12V  | 0  | 0  | 0  | 
Signal "3"  | 0  | 0  | 0  | 12V  | 12V  | 12V  | 0  | 
Signal "4"  | 0  | 0  | 0  | 0  | 0  | 12V  | 12V  |