Dodge Ram Truck 1500-2500-3500. Manual — part 1118
P2121-PPS CONFORMANCE ERROR (CONTINUED)
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.
Yes
>> 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?
Yes
>> 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)
9 - 1394
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P2121-PPS CONFORMANCE ERROR (CONTINUED)
6.
SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the APPS 1 signal circuit at the sen-
sor connector and battery negative.
Is the resistance greater than 100 K ohms?
Yes
>> 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?
Yes
>> 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)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1395
P2121-PPS CONFORMANCE ERROR (CONTINUED)
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?
Yes
>> 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?
Yes
>> 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)
9 - 1396
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P2121-PPS CONFORMANCE ERROR (CONTINUED)
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?
Yes
>> 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 sen-
sor connector and the PPS 1 supply circuit in the sensor connector.
Is the resistance greater than 100 K ohms?
Yes
>> 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)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1397
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст