Diagnostic trouble codes manual

Diagnostic Trouble Codes (DTC) are the codes generated and stored by the Powertrain Control Module (PCM) when the Onboard Diagnostic (OBD) system indicates a malfunction. Simply put, when your car system diagnoses that something went wrong, it will send a code indicating the specific fault. The diagnostic trouble code is the code your OBD generates to tell you something is wrong. Reading as a series of five letters and numbers, the DTC allows you to home in on the system that is not functioning properly. For example, if your vehicle’s OBD detects a leak in the evaporative emission system, you may see a P code. Diagnostic Trouble Code (DTC) Charts and Descriptions Note: Refer to the applicable Workshop Manual section to diagnose the body and chassis DTCs. PCED On Board Diagnostics SECTION 4: Powertrain DTC Charts and Descriptions Procedure revision date: 03/29/ P - Intake Camshaft Position Actuator Circuit/Open (Bank 1)File Size: KB.

Diagnostic Trouble Code (DTC) Descriptions. P - HO2S Sensor Circuit Slow Response (HO2S) The HEGO Monitor checks the HO2S Sensor frequency and amplitude. If during testing the frequency and amplitude were to fall below a calibrated limit, the test will fail. Contaminated HO2S sensor. Exhaust leaks. Shorted /open wiring. OBD II trouble code chart*. Code. Code Identification. P Mass air flow (MAF) sensor. Diagnostic Trouble Code (DTCs) --Trouble codes are how OBDII identifies and communicates to technicians where and what on-board problems exist. The first number in the DTC indicates whether the code is an SAE generic code (applies to all OBDII systems) or is specific to the vehicle manufacturer.

The only way to clear a PDTC is to fix the underlying problem with the vehicle that originally caused the PDTC and its corresponding DTC to set. Below is a comprehensive list of DTCs. The codes should be used in conjunction with the vehicle's service manual to discover which systems, circuits or. Oct This tool is calibrated for different engine types and comes with simple instructions. I can't tell you how many times I've asked customers, “Is.