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DTC P071B: Malfunction of Ds position switch (stuck ON)
DTC P071C: Malfunction of Ds position switch (stuck OFF)
 
 
 
 
DIAGNOSTIC FUNCTION
  • P071B: The TCM detects that the Ds position switch is stuck to ON.
  • P071C: The TCM detects that the Ds position switch is stuck to OFF.
 
 
DESCRIPTIONS OF MONITOR METHODS <P071B>
  • The Ds position switch remains ON for 5 seconds when the transmission range switch is at "P", "R" or "N".
 
 
MONITOR EXECUTION <P071B>
  • Voltage of battery: 10 volts or more
  • Voltage of battery: 16.5 volts or less
  • Transmission range switch position: "P", "R" or "N"
 
 
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) <P071B>
Other Monitor (There is no temporary DTC set 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-Input Rationality-Low) <P071B>
 
 
DTC SET CONDITIONS <P071B>
Check Conditions
  • Voltage of battery: 10 volts or more
  • Voltage of battery: 16.5 volts or less
Judgment Criteria
  • Ds position switch (when the transmission range switch is at "P", "R", or "N"): ON (5 seconds)
 
 
OBD-II DRIVE CYCLE PATTERN <P071B>
Transmission range: "P", "R", or "N" (Start the engine and keep it for 10 seconds or more)

 
 
DESCRIPTIONS OF MONITOR METHODS <P071C>
  • The Ds position switch remains OFF for five seconds when the transmission range switch is at "L".
 
 
MONITOR EXECUTION <P071C>
  • Voltage of battery: 10 volts or more
  • Voltage of battery: 16.5 volts or less
  • Transmission range switch position: "L"
 
 
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) <P071C>
Other Monitor (There is no temporary DTC set 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-Input Rationality-High) <P071C>
 
 
DTC SET CONDITIONS <P071C>
Check Conditions
  • Voltage of battery: 10 volts or more
  • Voltage of battery: 16.5 volts or less
Judgment Criteria
  • Ds position switch (when the transmission range switch is at "L"): OFF (5 seconds)
 
 
OBD-II DRIVE CYCLE PATTERN <P071C>
Transmission range: "L" (Start the engine and keep it for 10 seconds or more)
 
 
PROBABLE CAUSES
  • Malfunction of selector lever assembly (Ds position switch)
  • Damaged wiring harness and connectors
  • Malfunction of TCM
 
 
DIAGNOSIS
STEP 1. Ds position switch single unit check.
Refer to .
Is the check result normal?
Go to Step 2 .
Replace the selector lever assembly (Refer to ).
 
STEP 2. Check for short to ground in INHS line between the TCM connector and the Ds position switch connector.
Is the check result normal?
Go to Step 3 .
Repair the connector(s) or wiring harness.
 
STEP 3. Check for open circuit in ground line between the Ds position switch connector and body ground.
Is the check result normal?
Go to Step 4 .
Repair the connector(s) or wiring harness.
 
STEP 4. Symptom recheck after erasing DTC.
Is the DTC stored?
Replace the TCM (Refer to ).
Intermittent malfunction (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).