A/T
DIAGNOSTIC TROUBLE CODE PROCEDURESDTC P0705: Transmission Range Switch System
DESCRIPTIONS OF MONITOR METHODS
^ The TCM receives no input signal from the transmission range switch.
^ The TCM receives multiple input signals simultaneously from the transmission range switch.
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)
Logic Flow Charts (Monitor Sequence):
DTC SET CONDITIONS
Check Conditions
^ Voltage of battery: 2 volts or more.
Judgment Criteria
^ Transmission range switch: no signal detected. (30 seconds)
^ Transmission range switch: multiple signal. (30 seconds)
OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in "P," "R," "N," "D" 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" 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 system circuit
^ Damaged harness or connector
^ Improper installation angle of transmission range switch
^ Malfunction of the transmission range switch
^ Malfunction of the TCM
DIAGNOSIS
STEP 1. Check the TCM terminal voltage.
[C-38 TCM connector (vehicle side, connected)]
Turn ON the ignition switch, and check by shifting to each range.
^ "P" range: Terminal No. 6 to body ground Battery positive voltage
^ "R" range: Terminal No. 7 to body ground Battery positive voltage
^ "N" range: Terminal No. 21 to body ground Battery positive voltage
^ "D" range: Terminal No. 8 to body ground Battery positive voltage
Q:Is the check result normal?
YES: Go to Step 6.
NO: Go to Step 2.
STEP 2. Check the path between the ignition switch and the transmission range switch.
Turn OFF the ignition switch, and check the following items.
^ Open/short circuit of wiring harness between the ignition switch and B-110 transmission range switch connector terminal No. 3.
^ Blown fuse
Q:Is the check result normal?
YES: Go to Step 3.
NO: Repair or replace the failure section.
STEP 3. Check the wiring harness between the transmission range switch and TCM.
Check for continuity between B-110 transmission range switch terminals and C-38 TCM terminals.
^ Between B-110 terminal No. 2 and C-38 terminal No. 6: At the "P" range, continuity exists.
^ Between B-110 terminal No. 9 and C-38 terminal No. 7: At the "R" range, continuity exists.
^ Between B-110 terminal No. 8 and C-38 terminal No. 21: At the "P" range, continuity exists.
^ Between B-110 terminal No. 5 and C-38 terminal No. 8: At the "P" range, continuity exists.
When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
Q:Is the check result normal?
YES: Go to Step 4.
NO: Repair or replace the failure section.
STEP 4. Check the transmission range switch as a single unit.
Q:Is the check result normal?
YES: Go to Step 5.
NO: Go to Step 7.
STEP 5. Check the TCM connector pin terminal and the connection status.
Q:Is there a failure point?
YES: Repair or replace the failure section.
NO: Replace the TCM.
STEP 6. Erase the DTC code, and drive the vehicle for a while.
Check that the normal code is displayed.
Q:Is the check result normal?
YES: The procedure is complete.
NO: Replace the TCM.
STEP 7. Adjust the transmission range switch.
After adjustment, check the continuity between the terminals again.
Q:Is the check result normal?
YES: Go to Step 8.
NO: Replace the transmission range switch.
STEP 8. Erase the DTC code, and drive the vehicle for a while.
Check that the normal code is displayed.
Q:Is the check result normal?
YES: The procedure is complete.
NO: Return to START.