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Common Chrysler OBD II (P1) Enhanced Codes |
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The Diagnostic Trouble Codes (DTCs) listed below are some of the most commonly reported on Chrysler vehicles 1996 and newer. The SUPER AutoScanner Kit CP9150 and the SUPER AutoScanner CP9145 can retrieve both Generic and Enhanced DTCs to the tool. Although the CP9135 is not designed to retrieve these enhanced codes, some Chrysler vehicles will send both generic and enhanced codes as well.
Please note that these DTC definitions are provided for reference only. We recommend that you consult a service manual for your vehicle before actually attempting repairs.
If the definition of your code is not listed below, you can use our online code lookup application:
CODE LOOKUP
You can also call our Technical Support department at 1-800-228-7667 (8:00 - 6:00 EST, Monday - Friday), or email your request to tech_support@actron.com.
Many of the larger public library systems keep a fairly complete inventory of factory service manuals in their reference sections. These manuals will contain code definitions and other troubleshooting information that can be very helpful.
To order a book containing a complete list of codes for GM, Ford and Chrysler or Asian OBD II vehicles, please visit www.autodatapubs.com.
P1391 Intermittent loss of CMP (camshaft position) or CKP (crankshaft position) signal
Camshaft Position (CMP) sensor and Crankshaft (CKP) sensor signals are monitored with engine running or cranking. Diagnostic Trouble Codes (DTCs) will set in Powertrain Control Module (PCM) memory when the PCM senses failure counter reaches 20 failures for 2 consecutive trips.
Possible causes are: - CKP sensor improperly installed.
- Defective CKP sensor.
- Defective CMP
- Defective PCM
- Defective tone wheel/flexplate.
- Visually inspect related wiring harness. Check for chafed, pierced, pinched or partially broken wires, defective connectors or defective wiring.
- Visually inspect related wiring harness connectors. Check for broken, bent, pushed out or corroded terminals.
P1494 Leak Detect Pumps SW or mechanical fault
Leak Detection Pump (LDP) switch operation is monitored immediately after a cold start, with ambient temperature 40-90 degrees F and engine coolant temperature within 10 degrees F of ambient temperature. DTC will set in Powertrain Control Module (PCM) memory when PCM does not sense a change in switch state when LDP solenoid is energized.
Possible causes are: - Leak or obstruction in LDP vacuum supply.
- Defective LDP.
- LDP switch senses circuit open, shorted, corroded or defective PCM. The switch connector is a very common problem.
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