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CIRCUIT OPERATION
Battery positive voltage is applied to the transmission range switch (terminal 8) when the ignition switch is turned "ON."
Battery positive voltage is applied to the PCM (terminal 101) when the transmission range is in the "P" range. The PCM judges that the transmission range is in the "P" range when the battery positive voltage is applied.
Battery positive voltage is applied to the PCM terminal 108 (121, 102, 109, 122 or 110) when the selector lever is in the "R" range ("N," "D," "3," "2" or "L" range). The PCM judges that the selector lever is in the "R" range ("N," "D," "3," "2" or "L" range) when the battery positive voltage is applied.
DESCRIPTIONS OF MONITOR METHODS
If no signal is input from transmission range switch for more than 30 seconds, PCM judges that transmission range switch has a failure.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
• Not applicable

Sensor (The sensor below is determined to be normal)
• Not applicable
LOGIC FLOW CHARTS (Monitor Sequence)
DTC SET CONDITIONS

Check Conditions, Judgement Criteria
Transmission range switch: no signal detected. (30 seconds)
OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in "P," "R," "N," "D," "3," "2" and "L" ranges respectively for more than one minute, and turn "LOCK" (OFF) the ignition switch. Then restart the engine, and stop the vehicle in "P," "R," "N," "D," "3," "2" and "L" ranges respectively for more than one minute.
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:
Malfunction of the transmission range switch
Malfunction of the ignition switch
Damaged harness or connector
Malfunction of the PCM

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