Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1202
7.
TP SENSOR
Connect the PCM harness connector.
Ignition on, engine not running.
With a scan tool, monitor the TP Sensor voltage.
Connect a jumper wire between the (K22) TP Sensor No.1 Signal cir-
cuit and the (K922) Sensor Return circuit in the Throttle Body harness
connector.
TP Sensor No.1 voltage should start at approximately 4.8 volts and
decrease to 0.2 of a volt.
Connect a jumper wire between the (K122) TP Sensor No.2 Signal cir-
cuit and the (F855) 5-volt Supply circuit in the Throttle Body harness
connector.
TP Sensor No.2 voltage should start at approximately 0 volts and
increase to 4.8 to 5.2 volts.
Does the TP Sensor voltage change to the appropriate voltage
with the jumper wire installed?
Yes
>> Disconnect the Battery before replacing the Throttle Body
Assembly. Replace the Throttle Body Assembly. After instal-
lation is complete, use a scan tool and select the ETC
RELEARN function
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 8
9 - 832
ENGINE ELECTRICAL DIAGNOSTICS
LX
8.
RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the PCM harness connector.
Measure the resistance of the (K22) and (K122) TP Signal circuits from
the Throttle Body harness connector to the appropriate terminals of
special tool #8815.
Is the resistance below 5.0 ohms for each circuit?
Yes
>> Go To 9
No
>> Repair the excessive resistance in the (K22) or (K122) TP
Sensor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
LX
ENGINE ELECTRICAL DIAGNOSTICS
9 - 833
9.
TP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between ground and the (K22) and (K122) TP
Signal circuits at the appropriate terminals of special tool #8815.
Is the resistance above 100k ohms for each circuit?
Yes
>> Go To 10
No
>> Repair the short to ground in the (K22) or (K122) TP Sen-
sor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
9 - 834
ENGINE ELECTRICAL DIAGNOSTICS
LX
10.
RESISTANCE IN THE (K922) SENSOR RETURN CIRCUIT
Measure the resistance of the (K922) Sensor Return circuit from the
Throttle Body harness connector to the appropriate terminal of special
tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 17
No
>> Repair the excessive resistance in the (K922) Sensor
Return circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
11.
RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the C1 PCM harness connector.
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 (F856) 5-volt Supply circuit from the
MAP Sensor harness connector to the appropriate terminal of special
tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 12
No
>> Repair the excessive resistance in the (F856) 5-volt Supply
circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer
to 9 - ENGINE - STANDARD PROCEDURE)
LX
ENGINE ELECTRICAL DIAGNOSTICS
9 - 835
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст