Chrysler 2005 Crossfire SRT6 Service Manual page 1936

9 - 12 ENGINE - ELECTRICAL DIAGNOSTICS
(P0102) MASS AIR FLOW 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 an active DTC.
With the ignition on.
With the DRB III , erase 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 18
3.
FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN
Turn the ignition off.
Disconnect the MAF Sensor harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Connect a 12-volt test light between ground and the Fused Engine
Control Relay Output circuit.
Note: The test light must illuminate brightly. Compare the bright-
ness to when connected directly to B(+).
Does the test light illuminate brightly?
Yes >> Go To 4
No >> Repair the Fused Engine Control Relay Output circuit for
an open.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
4.
CHECK THE 5-VOLT SUPPLY VOLTAGE
With the ignition on.
Measure the voltage between ground and the 5-Volt Supply circuit.
Is the voltage between 4.7 and 5.2 volts?
Yes >> Go To 9
No >> If the voltage is above 5.2 volts, Go To 8
If the voltage is below 4.7 volts, Go To 5
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