P1826

DTC P1826: Shift Fork Position Sensor 2 System (Voltage high range out)

CAUTION
^ If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
^ Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

DIAGNOSTIC FUNCTION
TC-SST-ECU checks that the voltage of the shift fork position sensor 2 is normal.

DESCRIPTIONS OF MONITOR METHODS
The voltage of the shift fork position sensor 2 is too high.

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)
^ P1825: Shift fork position sensor 2 system (Voltage low range out)
^ P1827: Shift fork position sensor 2 system (Output range out)
^ P1828: Shift fork position sensor 2 system (Neutral)
^ P1829: Shift fork position sensor 2 system (Poor performance)
^ P183D: Shift fork 2 malfunction
^ P1852: Shift fork 1 or 2 opposite direction movement
^ P1855: Shift fork 3 or 4 opposite direction movement
^ P1857: Odd number gear axle interlock
^ P1876: Gear block 1st
^ P1877: Gear block 2nd
^ P1878: Gear block 3rd
^ P1879: Gear block 4th
^ P187A: Gear block 5th
^ P187B: Gear block 6th
^ P187C: Gear block reverse

Sensor (The sensor below is determined to be normal)
^ Not applicable

LOGIC FLOW CHARTS (Monitor Sequence)





DTC SET CONDITIONS

Check Conditions
^ Voltage of battery: 8 V or more.
^ Voltage of battery: 16.5 V or less.

JUDGMENT CRITERIA
^ Position sensor voltage: 3.008 V or more. (160 millisecond)

OBD-II DRIVE CYCLE PATTERN
The position sensor voltage remains 3.008 V or less for 160 millisecond.

PROBABLE CAUSES
^ Malfunction of TC-SST-ECU
^ Malfunction of shift fork position sensor 2

DIAGNOSTIC PROCEDURE

Required Special Tools:
^ MB991958 Scan Tool (M.U.T.-III Sub Assembly)
^ MB991824: Vehicle Communication Interface (V.C.I.)
^ MB991827 M.U.T.-III USB Cable
^ MB991910 M.U.T.-III Main Harness A

STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.

Q:Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to Troubleshooting.) CAN Bus Diagnostics Chart After repairing the CAN bus line, go to Step 2.

STEP 2. Check whether the DTC is reset.

Q:Is DTC No. P1826 set?
YES : Replace the transaxle assembly.
NO : Intermittent malfunction. (Refer to How to Cope with Intermittent Malfunction.) Troubleshooting Contents