Dodge Ram Truck 1500-2500-3500. Manual — part 1045
P0113-INTAKE AIR TEMPERATURE (IAT) SENSOR VOLTAGE TOO HIGH (CONTINUED)
7.
ECM
Reconnect the ECM harness connectors.
Turn the ignition on.
With the scan tool, erase DTCs.
While monitoring with scan tool, use a jumper wire and connect the
sensor (K21) signal circuit to the sensor (K916) return circuit at the
sensor harness connector.
Did the DTC P0112 set?
Yes
>> Refer to the INTERMITTENT CONDITION Symptom
(Diagnostic Procedure). (Refer to 9 - ENGINE - DIAGNO-
SIS AND TESTING)
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
No
>> Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
9 - 1102
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0116-ENGINE COOLANT TEMPERATURE (ECT) SENSOR RATIONALITY
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1103
P0116-ENGINE COOLANT TEMPERATURE (ECT) SENSOR RATIONALITY (CONTINUED)
For the Engine circuit diagram (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CON-
TROL MODULE - SCHEMATIC - ELECTRICAL)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
While the engine is running.
•
Set Condition:
The ECM does not read a change in value from the sensor over time.
Possible Causes
LOW COOLANT LEVEL
COOLANT TEMPERATURE SENSOR
THERMOSTAT
INTERMITTENT CONDITION
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.
LOW COOLANT LEVEL
With the engine cold, verify the level of coolant in the radiator.
Is the radiator full of coolant?
Yes
>> Go To 2
No
>> Fill the radiator with coolant- refer to the owners manual for assistance.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
2.
COOLANT TEMPERATURE SENSOR
Remove the temperature sensor and reconnect the wiring to the sensor.
Turn the ignition on.
Monitor scan tool, while heating the sensor with an external heat source (DO NOT USE OPEN FLAME).
Does the reading from the sensor increase at least 5 degrees F. on the scan tool?
Yes
>> Go To 3
No
>> Replace the coolant temp sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
9 - 1104
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0116-ENGINE COOLANT TEMPERATURE (ECT) SENSOR RATIONALITY (CONTINUED)
3.
THERMOSTAT
NOTE: refer to the no trouble code test
9
*Thermostat Test
9
to ensure the thermostat is operating properly.
Is the thermostat operating properly?
Yes
>> Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No
>> Replace the Thermostat.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1105
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст