Chrysler 2005 Crossfire SRT6 Service Manual page 2096

9 - 172 ENGINE - ELECTRICAL DIAGNOSTICS
(P0138) O2 SENSOR 1/2 CIRCUIT HIGH (CONTINUED)
When Monitored and Set Condition
• When Monitored: With the engine running between 1000 and 2000 RPM, engine load between 15% to 50%,
closed loop mode, the three way catalytic converter temperature is greater than 380°C (716°F), and the O2
sensor heater must be ON for at least 220 seconds to enable the signal inactive portion of the test.
• Set Condition: O2 Sensor voltage is greater than 1.5 volts for approximately 5 seconds.
O2 SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
ENGINE EXHAUST LEAK
O2 SENSOR
POWERTRAIN CONTROL MODULE
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
CHECK FOR CURRENT DTC
Turn the ignition on.
With the DRB III , read PCM DTCs.
Is this DTC present?
Yes >> For complete diagnosis of this DTC, refer to (P0131) O2
SENSOR 1/1 CIRCUIT LOW.
No >> Go To 2
2.
INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Note: Check connectors — Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using
the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the
wires while checking for shorts and open circuits.
Note: Check for any Technical Service Bulletins that may apply.
Were there any problems found?
Yes >> Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for
a possible intermittent condition.
POSSIBLE CAUSES
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