DTC P0642-13 / P0933-12 / P0933-14 / P0934-1C / P0935-1C

Precautions: Precautions for Diagnosing Trouble · Precautions for Disassembly and Reassembly · Precautions for Transmission / Transaxle · General safety (00)

DTC Detecting Condition and Trouble Area

DTC detecting condition	Trouble area
P0642-13: Sensor Reference Voltage “A” Circuit Low – Circuit open Sensor circuit is open. (1 D/C detection logic)	•Even gear clutch pressure sensor circuit •Even gear clutch pressure sensor (solenoid valve unit) •TCM
P0933-12: Hydraulic Pressure Sensor Range / Performance – Circuit Short to Battery Circuit is shorted to power supply. (1 D/C detection logic)
P0933-14: Hydraulic Pressure Sensor Range / Performance – Circuit Short to Battery Circuit is shorted to ground or open. (1 D/C detection logic)
P0934-1C: Hydraulic Pressure Sensor Circuit Low – Circuit Voltage Out of Range Circuit voltage is out of specified range. (1 D/C detection logic but transmission warning light does not light up)
P0935-1C: Hydraulic Pressure Sensor Circuit High – Circuit Voltage Out of Range Circuit voltage is out of specified range. (1 D/C detection logic)

Circuit Diagram

[A]:	TCM connector (View: [a])	2.	Even gear clutch pressure sensor	7.	6th gear position sensor
A1:	Even gear clutch pressure sensor power supply circuit	3.	Sensor module	8.	2nd & 4th gear position sensor
A2:	Even gear clutch pressure sensor signal circuit	4.	Sensor module temperature sensor	9.	Even gear clutch speed sensor
A3:	Even gear clutch pressure sensor ground circuit	5.	1st & 3rd gear position sensor	10.	Odd gear clutch speed sensor
1.	TCM	6.	5th & reverse gear position sensor	11.	Gear select position sensor

DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test with 2 persons, a driver and a tester.

NOTE:

•Check that the following condition is satisfied in this procedure.

—11 V < Battery voltage < 15 V

•Check that the following DTCs are not detected in this “DTC Confirmation Procedure”.

—Sensor module temperature sensor (P0668-11, P0668-15, P19D1-62 and P19D1-64)
—Odd gear clutch speed sensor (P0715-31, P0715-61, P0715-62 and P0715-64)
—Even gear clutch speed sensor (P0716-31, P0716-61, P0716-62 and P0716-64)
—Gear select position sensor (P0904-11, P0904-15, P0904-1C, P0904-36, P0904-37, P0904-38 and P0909-1C)
—1st & 3rd gear position sensor (P0914-11, P0914-15, P0914-1C, P0914-36, P0914-37 and P0914-38)
—2nd & 4th gear position sensor (P0915-11, P0915-15, P0915-1C, P0915-36, P0915-37 and P0915-38)
—5th & reverse gear position sensor (P0916-11, P0916-15, P0916-1C, P0916-36, P0916-37 and P0916-38)
—6th gear position sensor (P0917-11, P0917-15, P0917-1C, P0917-36, P0917-37 and P0917-38)

—Sensor supply voltage (P19A8-1C)

1)Start engine and drive vehicle.

DTC Troubleshooting

Step	Action	Yes	No
1	Was “Twin Clutch System Check” performed?	Go to Step 2.	Go to Twin Clutch System Check.
2	Even gear clutch pressure sensor power supply circuit check 1)With ignition “OFF”, even gear clutch pressure sensor connector. 2)Check for proper terminal connection to even gear clutch pressure sensor connector. 3)If connection is OK, set ignition “ON”. 4)Check that voltage between “A1” and ground is approx. 5 V. Is check result OK?	Go to step 3.	Repair “A1” circuit. If this DTC is detected again, replace TCM and recheck DTC.
3	Even gear clutch pressure sensor signal circuit and ground circuit check 1)With ignition “OFF”, disconnect “E495” and “E496” connectors from TCM. 2)Check for proper terminal connection to “E495” and “E496” connectors. 3)If connections are OK, check the following points. •Resistance of “A2” and “A3” circuits: less than 1 Ω •Resistance between each of “A2” and “A3” circuits and ground: infinity •Resistance between “A2” circuit terminal and other terminal at even gear clutch pressure sensor connector: infinity •Resistance between “A3” circuit terminal and other terminal at even gear clutch pressure sensor connector: infinity •Voltage of “A2” and “A3” circuits: approx. 0 V (When ignition is “ON”) Is check result OK?	Replace even gear clutch pressure sensor (solenoid valve unit). If this DTC is detected again, replace TCM and recheck DTC.	Repair or replace defective wire harness.