Dodge Ram Truck 1500-2500-3500. Manual — part 910
P0517-BATTERY TEMPERATURE SENSOR CIRCUIT HIGH (CONTINUED)
For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition on and battery voltage greater than 10 volts.
•
Set Condition:
Battery temperature voltage above 4.94 volts. One Trip Fault. Three good trips to turn off the MIL.
Possible Causes
(K25) BATT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K25) BATT TEMP SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
BATTERY TEMPERATURE SENSOR
PCM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
BATTERY TEMPERATURE SENSOR VOLTAGE ABOVE 4.8 VOLTS
Ignition on, engine not running.
With a scan tool, monitor the Battery Temperature Sensor voltage.
Is the voltage above 4.9 volts?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
2.
BATTERY TEMPERATURE SENSOR
Turn the ignition off.
Disconnect the Battery Temperature Sensor harness connector.
Ignition on, engine not running.
With the scan tool, read the Battery Temp Voltage value.
Connect a jumper wire between the (K25) Batt Temp Signal circuit and
the (K900) Sensor Ground circuit in the Battery Temp Sensor harness
connector.
Did the Battery Temp voltage value change from greater than
4.5 volts to less than 1.0 volt with the jumper wire installed?
Yes
>> Replace the Battery Temperature Sensor.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 3
NOTE: Remove the jumper wire before continuing.
9 - 562
ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L
DR/DH
P0517-BATTERY TEMPERATURE SENSOR CIRCUIT HIGH (CONTINUED)
3.
(K25) BATT TEMP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
Turn the ignition off.
Disconnect the C2 and C3 PCM harness connectors.
Measure the voltage on the (K25) Batt Temp Signal circuit in the Bat-
tery Temp Sensor harness connector.
Is the voltage above 5.2 volts?
Yes
>> Repair the short to battery voltage in the (K25) Batt Temp
Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 4
4.
(K25) BATT TEMP SIGNAL CIRCUIT OPEN
Turn the ignition off.
CAUTION: Do not probe the PCM harness connectors. Probing
the PCM harness connectors will damage the PCM terminals
resulting in poor terminal to pin connection. Install Miller Special
Tool #8815 to perform diagnosis.
Measure the resistance of the (K25) Batt Temp Signal circuit from the
Battery Temp Sensor harness connector to the appropriate terminal of
special tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 5
No
>> Repair the open in the (K25) Batt Temp Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L
9 - 563
P0517-BATTERY TEMPERATURE SENSOR CIRCUIT HIGH (CONTINUED)
5.
(K900) SENSOR GROUND CIRCUIT OPEN
Measure the resistance in the (K900) Sensor Ground circuit from the
Sensor harness connector to the appropriate terminal of special tool
#8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the open in the (K900) Sensor Ground circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
6.
PCM
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal
push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and
Ground circuits.
Were there any problems found?
Yes
>> Repair as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Replace and program the Powertrain Control Module per Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
9 - 564
ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L
DR/DH
P0522-OIL PRESSURE TOO LOW
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L
9 - 565
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