Chrysler 2005 Crossfire SRT6 Service Manual page 2018

9 - 94 ENGINE - ELECTRICAL DIAGNOSTICS
(P0121) APPS 5-VOLT SUPPLY CIRCUIT (CONTINUED)
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 erasing 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 11
3.
CHECK THE APP SENSOR 5-VOLT SUPPLY CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the APP Sensor 5-Volt Supply circuit at the
APP Sensor harness connector.
Is the voltage between 4.7 and 5.2 volts?
Yes >> Go To 4
No >> If the voltage is above 5.2 volts, Go To 5
If the voltage is below 4.7 volts, Go To 7
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