Chrysler 2005 Crossfire SRT6 Service Manual page 2017

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(P0121) APPS 5-VOLT SUPPLY CIRCUIT (CONTINUED)
When Monitored and Set Condition
• When Monitored: Ignition on.
• Set Condition: When the PCM recognizes the APP Sensor 5-Volt Supply circuit voltage is below 1.0 volt or
higher than 5.2 volts.
APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT(S)
APP SENSOR 5-VOLT SUPPLY CIRCUIT OPEN
TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT(S)
ACCELERATOR PEDAL POSITION SENSOR
POWERTRAIN CONTROL MODULE
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Always perform diagnostics with a fully charged battery.
Note: Check connectors — Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Note: Check for applicable TSBs related to the problem.
Turn the ignition on.
With the DRB III , read PCM DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Perform this procedure prior to symptom diagnosis.
Continue
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ENGINE - ELECTRICAL DIAGNOSTICS 9 - 93
POSSIBLE CAUSES