2006 DODGE RAM SRT-10 engine

2.(D25) J1850 SHORTED
Measure the resistance between the (D25) J1850 circuit and all other
circuits in both ECM connectors.
Is the resistance greater than 100k ohms?
Ye s>>
Refer to the Body Diagnostic book Communications section.
No>>
Repair (D25) J1850 shorted to another circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

When Monitored:
While the engine is running
Set Condition:
The ECM detected a conformance error between PPS 1 and PPS 2
Possible Causes
OTHER DTC’S
WIRING HARNESS OR CONNECTOR DAMAGED
APPS
INTERMITTENT CONDITION
ECM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.OTHER DTC’S PRESENT
Using the scan tool, check for any additional APPS fault codes
Do you have any additiona APPS faults?
Ye s>>
troubleshoot other DTC’s first, Go To 2
No>>
Go To 12
2.APPS HARNESS
Verify that the APPS is connected.
Inspect the harness and the APPS connector.
Are any pins damaged?
Ye s>>
Repair or replace the harness.
No>>
Go To 3
3.APPS
Monitor the APPS 1 and APPS 2 voltage with the scan tool while depressing theacceralator pedal.
Is the voltage transition shown on the scan tool smooth while depressing the acceralator pedal and is
the voltage from APPS 1 twice as much as the voltage from APPS 2?
Ye s>>
Go To 4
No>>
Replace the APPS.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

4.OPEN SIGNAL CIRCUIT
Disconnect the ECM connectors.
Disconnect the APPS connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the APPS 1 signal circuit between the APPS
sensor connector and the ECM connector.
Ye s>>
Go To 5
No>>
Repair or Replace the harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
5.OPEN SUPPLY CIRCUIT
Measure the resistance of the APPS 1 supply circuit between the APPS
sensor connector and the ECM connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 6
No>>
Repair or replace the open harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

6.SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the APPS 1 signal circuit at the sensor
connector and battery negative.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 7
No>>
Repair the shorted harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
7.SIGNAL CIRCUIT SHORTED TO OTHER CIRCUITS
Measure the resistance between the APPS 1 signal circuit at the ECM
connector and all other circuits in the ECM connector.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 8
No>>
Repair the shorted signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

8.SUPPLY CIRCUIT SHORTED TO GROUND
Measure the resistance between the APPS 1 supply circuit at the sen-
sor connector and battery negative.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 9
No>>
Repair the Supply circuit shorted to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
9.SUPPLY CIRCUIT SHORTED TO OTHER CIRCUITS
Measure the resistance between the APPS 1 supply circuit at the ECM
connector and all other circuits in the ECM connector.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 10
No>>
Repair the supply circuit shorted to other circuits.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

10.RETURN CIRCUIT OPEN
Measure the resistance on the APPS 1 return circuit between the sen-
sor connector and the ECM connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 11
No>>
Repair the open return circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
11 .SIGANAL CIRCUIT SHORTED TO SUPPLY CIRCUIT
Measure the resistance between the APPS 1 signal circuit in the sensor
connector and the PPS 1 supply circuit in the sensor connector.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 12
No>>
Repair the signal circuit shorted to the supply.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

12.RETURN CIRCUIT SHORTED TO OTHER CIRCUITS
Measure the resistance between the APPS 1 return circuit at the ECM
connector and all other circuits in the ECM connector.
Ye s>>
Go To 13
No>>
Repair the return circuit shorted to other circuits.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
13.OPEN SIGNAL CIRCUIT
Measure the resistance of the APPS 2 signal circuit between the APPS
sensor connector and the ECM connector.
Ye s>>
Go To 14
No>>
Repair or Replace the harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

14.OPEN SUPPLY CIRCUIT
Measure the resistance of the APPS 2 supply circuit between the APPS
sensor connector and the ECM connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 15
No>>
Repair or replace the open harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
15.SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the APPS 2 signal circuit at the sensor
connector and battery negative.
Is the resistance greater than 100 K ohms?
Ye s>>
Go To 16
No>>
Repair the shorted harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)