If CMP sensor signal pattern is not consistent, repair wiring harness where wiggling caused oscilloscope pattern to become inconsistent. If CMP sensor signal pattern is consistent, go to next step. While monitoring oscilloscope pattern, wiggle CMP sensor signal circuitįrom CMP sensor to PCM.
Voltage lead, backprobe PCM connector, CMP sensor signal circuit (Tan/Yellow wire). Ensure CMP sensor connector is still connected. At this time, CMP sensor is assumed to be defective. If distributor rotor and drive are okay, go to next step.ħ. Repair distributor rotor or drive looseness as necessary. Inspect distributor rotor and drive for looseness. Visually inspect connector for corroded, damaged, pushed- out or miswired terminals. Visually inspect connector for corroded, damaged, pushed-out or miswired terminals. If CMP sensor signal pattern is not consistent, go to next step.Ĥ. If CMP sensor signal pattern is consistent, go to step 8 ). Using oscilloscope's voltage lead, backprobe CMP sensor connector, signal circuit (Tan/Yellow wire). Ensure CMP sensor connector is connected.
#1999 dodge durango forum manual
NOTE: Refer to manufacturer's operation manual for instructions in use of oscilloscope and procedure for pattern analysis.ģ. To diagnose CMP or CKP sensor signal loss without using oscilloscope, go to step 16). To diagnose CMP or CKP sensor signal loss using oscilloscope, go to next step. NOTE: CMP or CKP sensor signal loss can be detected by an RPM change, DTC or by observing oscilloscope pattern.Ģ. If scan tool does not display IN RANGE, loosen distributor hold-down clamp bolt and rotate distributor until reading is as close to zero degrees as possible and IN RANGE message is displayed. If scan tool displays IN RANGE, go to next step. Using scan tool in set sync mode, check distributor position. If vehicle is not equipped with a distributor, go to next step. Possible causes are:Ĭrankshaft Position (CKP) sensor improperly installed, defective CKP sensor, defective distributor, defective Camshaft Position (CMP) sensor, defective PCM, defective flywheel, defective connectors or defective wiring.ġ. DTC may be stored in Powertrain Control Module (PCM) when PCM senses FAILURE COUNTER reaches 96 failures for 2 consecutive trips. NOTE: DTC P1391 : INTERMITTENT LOSS OF CMP OR CKP is monitored with engine running or cranking. 98 durango - 2005 dodge 2500 pickup - 2010 dodge 250 pick up - several Chrysler fleet vehicles (passenger cars) - all have eventually required new transmissions.DTC P1391 : INTERMITTENT LOSS OF CMP OR CKP Quote Originally Posted by djm Yes - first I am only sharing my experience - what has happened to me. Warranty paid for both I have the max care on my JKU for that very reason. We do not abuse our vehicles - but we do use them Also had an older Jeep Cherokee or Grand Cherokee in 1999 also required transmission work. 98 durango - 2005 dodge 2500 pickup - 2010 dodge 250 pick up - several Chrysler fleet vehicles (passenger cars) - all have eventually required new transmissions. We do not abuse our vehicles - but we do use them - no question about it. Yes - first I am only sharing my experience - what has happened to me.
#1999 dodge durango forum driver
I figured my Jeep would be a daily driver for a couple years and when I finish school Id buy something else for daily use and keep the Jeep in the garage. I opted to buy the Max Care package which is 999 months 999999 miles essentially bumper to bumper. So I bought my rubicon as a certified pre-owned which meant it was eligible to purchase extended warranty coverage.
JEEP WRANGLER Chrysler Max Care experience
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