Source-backed diagnostic reference

P1738 EV diagnostic code

Automatic Transmission System Malfunction

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

ACURA: Automatic Transmission System Malfunction Source
BMW: Pressure Control Solenoid C Electrical Source
HONDA: Automatic Transmission System Malfunction Source
INFINITI: Automatic Transmission System Malfunction Source
MAZDA: Shift Time Error Source
OTHER: Shift Time Error Source

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