Home/
Registry/
Ford/
Bronco/
1980-1986/
“That dirty old truck”/
Photo
supermotors.net/registry/media/1168580
1991-95 Ford Bronco/F-Series EEC-IV 3-Digit DTC Code List & Definitions
Reference · 1980-1986 BroncoAll 40 service procedures
3-Digit Diagnostic Trouble Codes (DTCs) for '90-95 EEC-IV Trucks (p.1 of 2) GO TO THE NEXT PAGE...
IF THE IMAGE IS TOO SMALL, click it.
Part of 1980-1986 Ford Bronco Service Procedures
This document is page one of a two-page reference list of Ford EEC-IV three-digit Diagnostic Trouble Codes (DTCs) applicable to 1991-95 Bronco and F-series trucks. It lists codes 111 through 334, each with a prefix flag column (letters o, r, c indicating the test mode in which the code sets, apparently KOEO, running, or continuous memory) and a plain-language description of the fault. Covered systems include Air Charge Temperature (ACT), Engine Coolant Temperature (ECT), Throttle Position (TP), MAP, Mass Air Flow (MAF), oxygen sensors (HEGO) for Banks 1 and 2, adaptive fuel limits, injector pulsewidth faults, ignition circuits (PIP, IDM, SPOUT, CID/CPS, EI/EDIS coil primary failures including dual-plug systems), Thermactor air system faults, and EGR/EVP position sensor faults. A small diagram in the lower-right corner shows the EEC-IV diagnostic link connector (DLC) VIP test connectors C198 (black) and C199 (gray), including pin letters (A-F) and wire circuit numbers with colors: 915 (PK/LB), 914 (T/O), 658 (PK/LG), 359 (GY/R) ↔ 209 (W/P), and 926 (LB/O). This page allows a reader to decode self-test results retrieved from an EEC-IV equipped truck and locate the correct test connector wiring.
This document covers 1991-1995, which may differ from this 1983 Ford Bronco.
Is this accurate? Sign in to help verify it.
Frequently asked questions
- What does code 111 mean on a 1991-95 Ford Bronco or F-series?
- Code 111 means 'System PASS', no faults were detected during the EEC-IV self-test.
- What do codes 172 and 173 indicate?
- 172 is a lack of Oxygen Sensor (HEGO) switches indicating lean, Bank 1; 173 is a lack of HEGO switches indicating rich, Bank 1. Codes 176 and 177 are the equivalents for Bank 2.
- What does DTC 212 mean?
- Loss of IDM input to the processor, or the SPOUT circuit is grounded.
- Which codes relate to the EGR system?
- 327 (EVP circuit below minimum voltage), 328 (EVP voltage below closed limit), 332 (EGR valve opening not detected), and 334 (EVP voltage above closed limit / EVP closed voltage higher than expected).
- What are the connector names for the EEC-IV diagnostic test connectors?
- C198 (black) and C199 (gray), the VIP test connectors, with circuits 915 (PK/LB), 914 (T/O), 658 (PK/LG), 359 (GY/R), 209 (W/P), and 926 (LB/O).
No comments yet.