Chrysler Concorde 2004 Service Manual page 736

DRIVEABILITY - NGC
Symptom:
P0121-THROTTLE POSITION SENSOR #1 PERFORMANCE
When Monitored and Set Condition:
P0121-THROTTLE POSITION SENSOR #1 PERFORMANCE
When Monitored: With the engine running and no MAP Sensor or TP Sensor DTC's set.
Set Condition: The PCM determines a valid range in which the TP Sensor should be, at
a given RPM/Load. The actual TP Sensor voltage is then compared to this value. If the TP
Sensor voltage does not fall within the expected range within a predetermined time an
error will be detected. One Trip Fault.
GOOD TRIP EQUAL TO ZERO
HIGH RESISTANCE IN MAP (K6) 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN MAP (K6) 5 VOLT SUPPLY CIRCUIT
MAP SENSOR
HIGH RESISTANCE IN (K1) MAP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K1) MAP SIGNAL CIRCUIT
HIGH RESISTANCE IN (K4) MAP GROUND CIRCUIT
PCM
TP SENSOR OPERATION
HIGH RESISTANCE IN TP SENSOR (K6) 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN TP SENSOR (K6) 5 VOLT SUPPLY CIRCUIT
TP SENSOR
HIGH RESISTANCE IN (K22) TP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K22) TP SENSOR SIGNAL CIRCUIT
HIGH RESISTANCE IN TP (K4) SENSOR GROUND CIRCUIT
PCM
POSSIBLE CAUSES
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