react-native-obd-retriver/lib/typescript/src/ecu/retrievers/PermanentDTCRetriever.d.ts

A React Native hook library to manage Bluetooth Low Energy connections and communication with ELM327 OBD-II adapters.

import { BaseDTCRetriever, type RawDTCResponse } from './BaseDTCRetriever';
import type { ServiceMode } from './types';
import type { SendCommandFunction } from '../utils/types';
/**
 * Specializes in retrieving permanent Diagnostic Trouble Codes
 *
 * The PermanentDTCRetriever class uses OBD Service Mode 0A (10) to retrieve
 * permanent DTCs from the vehicle's diagnostic system. These are special codes
 * that persist in memory even after clearing DTCs and disconnecting the battery.
 *
 * Key features:
 * - Retrieves permanent/non-erasable fault codes
 * - Uses OBD service mode 0A (0x0A)
 * - Identifies issues that require specific repair verification
 * - Essential for emissions compliance and inspection readiness
 * - Supported primarily in newer vehicles (2010+)
 *
 * Permanent DTCs are critical for:
 * - Emissions testing compliance
 * - Verifying complete repairs of critical systems
 * - Monitoring vehicle readiness for inspection
 * - Detecting tampering with emissions systems
 *
 * Note: Not all vehicles support Mode 0A (permanent DTCs), particularly
 * vehicles manufactured before 2010. The feature is primarily required for
 * emissions compliance in modern vehicles.
 *
 * @example
 * ```typescript
 * // Create a retriever instance
 * const permanentRetriever = new PermanentDTCRetriever(sendCommand);
 *
 * // Retrieve and check permanent DTCs
 * const dtcResponse = await permanentRetriever.retrieveRawDTCs();
 *
 * if (dtcResponse) {
 *   if (dtcResponse.troubleCodes && dtcResponse.troubleCodes.length > 0) {
 *     console.log(`Found ${dtcResponse.troubleCodes.length} permanent DTCs:`);
 *     console.log("Vehicle will NOT pass emissions inspection until fixed:");
 *     dtcResponse.troubleCodes.forEach(dtc => {
 *       console.log(`- ${dtc}`); // e.g., "P0420", "P0455"
 *     });
 *   } else {
 *     console.log("No permanent DTCs found. Vehicle ready for inspection.");
 *   }
 * } else {
 *   console.error("Failed to retrieve permanent DTCs or not supported");
 * }
 * ```
 */
export declare class PermanentDTCRetriever extends BaseDTCRetriever {
    static SERVICE_MODE: ServiceMode;
    constructor(sendCommand: SendCommandFunction);
    /**
     * Overrides retrieveRawDTCs to use the base class logic directly.
     * The base class now handles configuration, command sending, retries,
     * and response processing including NO DATA checks.
     */
    retrieveRawDTCs(): Promise<RawDTCResponse | null>;
    getServiceMode(): ServiceMode;
}
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