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TSB 08-034-05
SUBJECT:
MIL Illumination, DTC's P0037, P0058, P0131, P0132, P0133, P0138, P0151, P0153,
P0159
OVERVIEW:
This bulletin involves repositioning the upstream Oxygen (O2) sensor connectors and
replacing the wiring harness connector(s) and O2 sensor(s) as necessary.
MODELS:
2005 - 2006 (LX) 300/Magnum/Charger
NOTE: This bulletin applies to vehicles equipped with a 2.7L, 3.5L or 5.7L engine
(sales code EER, EGG or EZB).
SYMPTOM/CONDITION:
MIL Illumination due to one or more of the following DTC's:
· P0037-O2 SENSOR 1/2 HEATER CIRCUIT LOW
· P0058-O2 SENSOR 2/2 HEATER CIRCUIT HIGH
· P0131-O2 SENSOR 1/1 CIRCUIT LOW
· P0132-O2 SENSOR 1/1 CIRCUIT HIGH
· P0133-O2 SENSOR 1/1 SLOW RESPONSE
· P0138-O2 SENSOR 1/2 CIRCUIT HIGH
· P0151-O2 SENSOR 2/1 CIRCUIT LOW
· P0153-O2 SENSOR 2/1 SLOW RESPONSE
· P0159-O2 SENSOR 2/2 SLOW RESPONSE
The condition may be due to the cowl drain flowing water onto the connectors for the O2 sensor(s) at the center rear area of the engine. This leads to water intrusion into the wiring harness connector(s) which may lead to terminal corrosion and/or MIL illumination.
DIAGNOSIS:
NOTE: If the vehicle is equipped with a 5.7L engine (sales code EZB) and was built
on or before August 18, 2004 (MDH 0818XX), perform Service Bulletin
18-031-04 REV A as necessary before continuing with diagnosis. For 2.7L
and 3.5L engines continue with the diagnosis.
1. Open the hood
bank one is on the drivers side and bank two is on the passenger side
2. Disconnect the O2 Sensor connectors and check for water intrusion and/or corrosion in both upstream O2 sensor connectors at the center rear area of the engine.
a. If no water or corrosion is present, reposition the wiring harness connectors to the
outboard edge of the valve cover away from the center of the engine. Tie strap the
harnesses in place. If no water or corrosion was present, further diagnosis is
required. This bulletin does not apply.
b. If water is present but no corrosion, blow out the connector(s) and reposition the
wiring harness to the outboard edge of the valve cover away from the center of the
engine. Tie strap the harness in place.
c. If corrosion is present, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
AR (2) 05161925AA Wiring, 4 way
AR (2) 56029049AA Sensor, Oxygen (2.7 & 3.5L engines)
AR(2) 56028994AB Sensor, Oxygen (5.7L engine)
SPECIAL TOOLS/EQUIPMENT REQUIRED:
05019912AA Mopar Wire Crimping Tool (or equivalent)
NPN Oxygen Sensor Socket (Snap-On YA8875 or equivalent)
REPAIR PROCEDURE:
2.7L and 3.5L Engines Replace O2 Sensor and Wiring Harness Connector
1. Remove the appropriate O2 sensor. Refer to the detailed removal procedures
available in TechCONNECT, under: Service Info, 14 - Fuel System, Fuel Injection, O2
Sensor, Removal.
NOTE: It may be necessary to disconnect the purge vacuum harness to gain better
access to the harness connectors.
2. Replace the wiring harness connector, using kit p/n 05161925AA. Refer to the detailed
removal procedures available in TechCONNECT, under: Service Info, 8 - Electrical,
Wiring Diagram Information, Wire, Standard Procedures, Wire Splicing.
3. Install the new O2 sensor using the appropriate part number. Refer to the detailed
removal procedures available in TechCONNECT, under: Service Info, 14 - Fuel
System, Fuel Injection, O2 Sensor, Installation.
4. Reposition the wiring harness connectors to the outboard edge of the valve cover
away from the center of the engine. Tie strap the harnesses in place.
5.7L Engine Replace O2 Sensor and Wiring Harness Connector
1. Release Fuel Pressure. Refer to the detailed removal procedures available in
TechCONNECT, under: Service Info, 14 - Fuel System, Fuel Delivery, Standard
Procedure - Fuel Pressure Release.
WARNING:THE FUEL SYSTEM IS UNDER CONSTANT PRESSURE EVEN WITH
ENGINE OFF. BEFORE SERVICING FUEL RAIL, FUEL SYSTEM
PRESSURE MUST BE RELEASED.
2. Disconnect the negative battery cable.
08-034-05 -2-
3. Remove the intake manifold. Refer to the detailed removal procedures available in
TechCONNECT, under: Engine, Manifolds, Manifold - Intake, Removal.
4. Remove the 3 engine harness retaining clips from the engine harness bracket.
5. Disconnect and remove the appropriate O2 sensor. Refer to the detailed removal
procedures available in TechCONNECT, under: Service Info, 14 - Fuel System, Fuel
Injection, O2 Sensor, Removal.
6. Pull the lower harness up to access the O2 harness connectors.
7. Replace the wiring harness connector, using kit p/n 05161925AA. Refer to the detailed
removal procedures available in TechCONNECT, under: Service Info, 8 - Electrical,
Wiring Diagram Information, Wire, Standard Procedures, Wire Splicing.
8. Install the new O2 sensor using the appropriate part number. Refer to the detailed
removal procedures available in TechCONNECT, under: Service Info, 14 - Fuel
System, Fuel Injection, O2 Sensor, Installation.
9. Reposition the wiring harness connectors to the outboard edge of the valve cover
away from the center of the engine. Tie strap the harnesses in place.