Symptom:
P0122-THROTTLE POSITION SENSOR #1 LOW
When Monitored and Set Condition:
P0122-THROTTLE POSITION SENSOR #1 LOW
When Monitored: With the ignition on. Battery voltage greater than 10 volts.
Set Condition: Throttle Position Sensor voltage at the PCM is less than 0.0978 of a volt.
One Trip Fault.
POSSIBLE CAUSES
THROTTLE POSITION SENSOR SWEEP
INTERMITTENT CONDITION
(K6) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K6) 5 VOLT SUPPLY CIRCUIT OPEN
TP SENSOR INTERNAL FAILURE
(K22) TP SIGNAL CIRCUIT SHORTED TO GROUND
(K22) TP SIGNAL CIRCUIT SHORTED TO (K167) SENSOR GROUND CIRCUIT
PCM (K6) 5 VOLT SUPPLY CIRCUIT
PCM (K22) TP SENSOR SIGNAL
TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRBIIIt, read the Throttle Position Sensor voltage.
Is the voltage below 0.2 of a volt?
All
Yes → Go To 2
No → Go To 10
2 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K7) 5 volt Supply circuit in the TP Sensor harness
connector.
Is the voltage between 4.5 to 5.2 volts?
All
Yes → Go To 3
No → Go To 7
75
DRIVEABILITY - NGC
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