Code Definition

P1283 — Idle select signal invalid

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Chrysler

About P1283

P1283 is a manufacturer-specific powertrain diagnostic trouble code recorded for Chrysler vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1283 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

This fault code sets when the Powertrain Control Module (PCM) detects an invalid or out of range signal on the idle select input circuit. The idle select signal typically originates from the Transmission Control Module (TCM) or Body Control Module (BCM) and tells the PCM when to enter idle mode under specific conditions such as deceleration or automatic transmission engagement. The PCM uses this input as part of its idle speed and fuel control strategy. When the signal is missing, stuck, or outside the expected range, the PCM sets this code and the driver may notice unstable idle, incorrect id...

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