DTC P0904-11 / P0904-15 / P0904-1C / P0904-36 / P0904-37 / P0904-38 / P0909-1C

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
P0904-11: Gate Select Position – Circuit Short to Ground Circuit is shorted to ground. (1 D/C detection logic)	•Gear select position sensor circuit •Gear select position sensor (solenoid valve unit) •TCM
P0904-15: Gate Select Position – Circuit Short to Battery or Open Circuit is shorted to power supply or open. (1 D/C detection logic)
P0904-1C: Gate Select Position – Circuit Voltage Out of Range Circuit voltage is out of specified range. (1 D/C detection logic)
P0904-36: Gate Select Position – Signal Frequency Too Low Signal frequency is too low. (1 D/C detection logic)
P0904-37: Gate Select Position – Signal Frequency Too High Signal frequency is too high. (1 D/C detection logic)
P0904-38: Gate Select Position – Signal Frequency Incorrect Invalid signal frequency is received from gear select position sensor. (1 D/C detection logic)
P0909-1C: Gate Select Control Error – 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.	Gear select position sensor	7.	5th & reverse gear position sensor
A1:	Gear select position sensor power supply circuit	3.	Even gear clutch pressure sensor	8.	6th gear position sensor
A2:	Gear select position sensor signal circuit	4.	Sensor module	9.	2nd & 4th gear position sensor
A3:	Gear select position sensor ground circuit	5.	Sensor module temperature sensor	10.	Even gear clutch speed sensor
1.	TCM	6.	1st & 3rd gear position sensor	11.	Odd gear clutch speed 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”.

—Even gear clutch pressure sensor (P0642-13, P0933-12, P0933-14, P0934-1C and P0935-1C)
—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)
—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	Gear select position sensor power supply circuit check 1)With ignition “OFF”, gear select position sensor connector. 2)Check for proper terminal connection to gear select position 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	Gear select position 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 gear select position sensor connector: infinity •Resistance between “A3” circuit terminal and other terminal at gear select position sensor connector: infinity •Voltage of “A2” and “A3” circuits: approx. 0 V (When ignition is “ON”) Is check result OK?	Replace gear select position sensor (solenoid valve unit). If this DTC is detected again, replace TCM and recheck DTC.	Repair or replace defective wire harness.