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Оригинальный текст: http://minivan.ru/phpBB2/viewtopic.php?p=180532
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Kaufman   Вт Мар 23, 2010 11:31 am
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NOTE: Ensure the throttle is fully closed and free from binding or carbon
build up.
Start the engine.
With the DRBIIIt, read the TP Sensor voltage.
Is the voltage above 4.5 volts?
All
Yes ! Go To 2
No ! Go To 8

2 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (K22) TP Signal circuit and the (K6) 5 Volt
Supply circuit in the TP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes ! Repair the short to the (K6) 5 Volt Supply circuit in the (K22) TP
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No ! Go To 3

DRIVEABILITY - NGC
TEST ACTION APPLICABILITY

3 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K22) TP Signal circuit in the TP Sensor harness
connector.
Is the voltage above 5.2 volts?
All
Yes ! Repair the short to battery voltage in the (K22) TP Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No ! Go To 4

4 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Connect a jumper wire between the (K22) TP Signal circuit and the (K4) Sensor
ground circuit.
With the DRBIIIt, monitor the TP Sensor voltage.
Ignition on, engine not running.
Is the voltage below 0.5 of a volt?
All
Yes ! Replace the Throttle Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No ! Go To 5

5 Turn the ignition off.
Disconnect the TP harness connector.
Disconnect the 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 (K22) TP Signal circuit from the TP harness connector
to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes ! Go To 6
No ! Repair the open in the (K22) TP Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

6 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Disconnect the 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 (K4) Sensor ground circuit from the TP Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes ! Go To 7
No ! Repair the open in the (K4) Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

DRIVEABILITY - NGC
P0123-THROTTLE POSITION SENSOR #1 HIGH — Continued
TEST ACTION APPLICABILITY

7 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accordance
with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

8 Ignition on, engine not running.
With the DRBIIIt, monitor the TP Sensor voltage.
Slowly open the throttle from the idle position to the wide open throttle position.
Does voltage start at approximately 0.7 of a volt and go above 3.5 volts with a smooth
transition?
All
Yes ! Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No ! Replace the Throttle Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.


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Оригинальный текст: http://minivan.ru/phpBB2/viewtopic.php?p=180532
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