Chrysler 2005 Crossfire SRT6 Service Manual page 2094

9 - 170 ENGINE - ELECTRICAL DIAGNOSTICS
(P0137) O2 SENSOR 2/2 BELOW THRESHOLD (CONTINUED)
When Monitored and Set Condition
• When Monitored: Start and drive vehicle greater than 32 km/h (20 MPH) and less than 89 km/h (55 MPH).
Throttle open for a minimum 120 seconds. Coolant Temp greater than 70°C (158°F) and Catalytic Converter
Temperature greater than 600°C (1112°F).
• Set Condition: The O2 sensor voltage switches only 11 times or less from rich to lean within 20 seconds during
monitoring. Two Trip Fault.
EXHAUST LEAK
O2 SENSOR SIGNAL CIRCUIT
O2 SENSOR GROUND CIRCUIT
O2 SENSOR
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 (P0137) O2
SENSOR 2/2 ABOVE THRESHOLD.
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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