Dodge Ram Truck 1500-2500-3500. Manual — part 1694

P0713-TRANS TEMP SENSOR VOLTAGE TOO HIGH (GAS) (CONTINUED)

2.

CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO
VOLTAGE

Turn the ignition off to the lock position.

Disconnect the PCM C1 and C2 harness connectors.

Disconnect the Transmission Solenoid Assembly harness connector.

NOTE: Check connectors - Clean/repair as necessary
Ignition on, engine not running.

Measure the voltage of the (T54) Transmission Temperature Sensor
Signal circuit in the PCM C2 harness connector.

Is the voltage above 0.5 volts?

Yes

>> Repair the (T54) Transmission Temperature Sensor Signal

circuit for a short to voltage.

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

No

>> Go To 3

3.

CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO (F856)
5-VOLT SUPPLY CIRCUIT

Turn the ignition off to the lock position.

Measure the resistance between the (T54) Transmission Temperature
Sensor Signal circuit and the (F856) 5-volt Supply circuit in the Trans-
mission Solenoid Assembly harness connector.

Is the resistance above 100k ohms?

Yes

>> Go To 4

No

>> Repair the (T54) Transmission Temperature Sensor Signal

circuit for a short to the (F856) 5-volt Supply circuit.

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

21 - 708

AUTOMATIC TRANSMISSION - 48RE - GAS - ELECTRICAL DIAGNOSTICS

DR/DH

P0713-TRANS TEMP SENSOR VOLTAGE TOO HIGH (GAS) (CONTINUED)

4.

CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN

Measure the resistance of the (T54) Transmission Temperature Sensor
Signal circuit between the PCM C2 harness connector and the Trans-
mission Solenoid Assembly harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Go To 5

No

>> Repair the (T54) Transmission Temperature Sensor Signal

circuit for an open.

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

5.

CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN
OPEN

Measure the resistance of the (K900) Sensor Ground circuit between
the PCM C1 harness connector and the Transmission Solenoid
Assembly harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Go To 6

No

>> Repair the (K900) Sensor Ground circuit for an open.

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

DR/DH

AUTOMATIC TRANSMISSION - 48RE - GAS - ELECTRICAL DIAGNOSTICS

21 - 709

P0713-TRANS TEMP SENSOR VOLTAGE TOO HIGH (GAS) (CONTINUED)

6.

CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO THE
(F856) 5-VOLT SUPPLY CIRCUIT INTERNAL TO THE TRANSMISSION

Remove the Transmission Oil Pan. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 48RE/FLUID - STANDARD PROCE-
DURE)

Disconnect the Governor Pressure Sensor connector internal to the
transmission.

Measure the resistance between the (T54) Transmission Temperature
Sensor Signal circuit and (F856) 5-volt Supply circuit in the Governor
Pressure Sensor connector internal to the transmission.

Is the resistance above 100k ohms?

Yes

>> Go To 7

No

>> Replace the Transmission Solenoid Assembly per the Ser-

vice Information. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 48RE/VALVE BODY - REMOVAL)

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

7.

CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN
INTERNAL TO THE TRANSMISSION

Reconnect the Transmission Solenoid Assembly harness connector.

Measure the resistance of the (T54) Transmission Temperature Sensor
Signal circuit between the PCM C2 harness connector and the Gover-
nor Pressure Sensor connector internal to the transmission.

Is the resistance below 5.0 ohms?

Yes

>> Go To 8

No

>> Replace the Transmission Solenoid Assembly per the Ser-

vice Information. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 48RE/VALVE BODY - REMOVAL)

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

21 - 710

AUTOMATIC TRANSMISSION - 48RE - GAS - ELECTRICAL DIAGNOSTICS

DR/DH

P0713-TRANS TEMP SENSOR VOLTAGE TOO HIGH (GAS) (CONTINUED)

8.

CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN INTERNAL TO THE TRANSMISSION

Measure the resistance of the (F856) 5-volt Supply circuit between
PCM C2 harness connector and the Governor Pressure Sensor con-
nector internal to the transmission.

Is the resistance below 5.0 ohms?

Yes

>> Go To 9

No

>> Replace the Transmission Solenoid Assembly per the Ser-

vice Information. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 48RE/VALVE BODY - REMOVAL)

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

9.

CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN
OPEN INTERNAL TO THE TRANSMISSION

Measure the resistance of the (K900) Sensor Ground circuit between
the PCM C1 harness connector and the Governor Pressure Sensor
connector internal to the transmission.

Is the resistance below 5.0 ohms?

Yes

>> Go To 10

No

>> Replace the Transmission Solenoid Assembly per the Ser-

vice Information. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 48RE/VALVE BODY - REMOVAL)

Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (GAS). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)

DR/DH

AUTOMATIC TRANSMISSION - 48RE - GAS - ELECTRICAL DIAGNOSTICS

21 - 711