Chrysler Crossfire. Manual - part 517
(P0161) O2 SENSOR 2/2 HEATER PERFORMANCE (CONTINUED)
When Monitored and Set Condition
•
When Monitored: Engine Running and Heater duty cycle greater than 0%.
•
Set Condition: O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring
conditions. Two Trip Fault.
POSSIBLE CAUSES
FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN
O2 SENSOR HEATER CONTROL CIRCUIT SHORT TO VOLTAGE
O2 SENSOR HEATER CONTROL CIRCUIT SHORT TO GROUND
O2 HEATER CONTROL CIRCUIT OPEN
O2 HEATER ELEMENT
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
T
, read PCM DTCs.
Is this DTC present?
Yes
>> For complete diagnosis of this DTC, refer to (P0135) O2
SENSOR 1/1 HEATER PERFORMANCE.
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.
ZH
ENGINE - ELECTRICAL DIAGNOSTICS
9 - 213