Wrangler 2WD V6-3.8L (2008)
PROM - Programmable Read Only Memory: Customer Interest
Engine Controls - Long Crank Time/MIL ON/DTC P0344/P0340
NUMBER: 08-001-08 REV. A
GROUP: Electrical
DATE: February 23, 2008
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-001-08, DATED JANUARY 26, 2008. THIS IS A COMPLETE
REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT REVISIONS.
SUBJECT:
Long Engine Crank Time And/Or MIL Illumination Due To DTC P0340 / P0344
OVERVIEW:
This bulletin involves the reprogramming of the PCM and the possible replacement of the engine camshaft sensor.
MODELS:
2008
(JK)
Wrangler
NOTE:
This bulletin applies to vehicles equipped with a 3.8L engine (sales code EGT) and built prior to February 13, 2008 (MDH 0213XX).
SYMPTOM/CONDITION:
The customer may experience one of the following conditions:
1).
A Malfunction Indicator Lamp (MIL) illumination when starting due to one of the following DTCs:
a).
P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1
b).
P0344 - Camshaft Position Sensor Intermittent - Bank 1 Sensor 1
2).
Long engine crank time.
3).
Two engine start attempts prior to engine starting.
4).
Due to the "TIP Start Feature" on automatic transmission equipped vehicles, once the ignition key / switch has been released from the "START"
position, the starter may stay engaged for up to 10 seconds while the engine attempts to start.
DIAGNOSIS:
1.
If the above condition is present, determine the Build Date (MDH) of the vehicle.
2.
If the vehicle was built prior to January 04, 2008 (MDH 0104XX) then perform Repair Procedure Section A - Replace Camshaft Position Sensor
and Section B - Reprogram The PCM.
3.
If the vehicle was built on or between January 04, 2008 (MDH 0104XX) and February 12, 2008 (MDH 0212XX), then only perform Repair
Procedure Section B - Reprogram The PCM. The camshaft position sensor is already up to date.
PARTS REQUIRED:
