Chrysler 2005 Crossfire SRT6 Service Manual page 2233

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(P0221) APPS SENSOR 1 AND 2 VOLTAGE CORRELATION (CONTINUED)
When Monitored and Set Condition
• When Monitored: With the ignition on and no APP Sensor 1 or APP Sensor 2 DTC present.
• Set Condition: APP Sensor values 1 and 2 are not coherent. Engine will only idle if the brake pedal is pressed
or failed. Acceleration rate and engine output are limited.
ACCELERATOR PEDAL POSITION SENSOR SIGNAL 1 AND SIGNAL 2 CIRCUITS SHORT TOGETHER
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
Go To 2
2.
CHECK FOR CURRENT DTC
Note: If the PCM detects and stores a DTC, the PCM also stores
the engine/vehicle operating conditions under which the DTC was
set. Some of these conditions are displayed on the DRB III at the
same time the DTC is displayed.
Note: Before clearing stored DTCs, record these conditions.
Attempting to duplicate these conditions may assist when check-
ing for a DTC.
Turn the ignition on.
With the DRB III , clear PCM DTCs.
Note: It maybe necessary to road test the vehicle for this DTC to
set.
With the DRB III , read PCM DTCs.
Did this DTC set again?
Yes >> Go To 3
No >> Go To 6
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 309
POSSIBLE CAUSES