Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1991 Ford Probe LX, AutomaticFACTORY OEM SERVICE PROCEDURE
Continuous Code-To-Test Menu - 3.0L
CONTINUOUS MEMORY - CIRCUIT TEST & STEP
| Code No. | Go To: Test No. (Step No.) | |||
|---|---|---|---|---|
| 3.0L SPFI-MA (SHO) | ||||
| 14 | NB (1) | |||
| 15 | QB (1) | |||
| 18 | NB (2) | |||
| 19 | DR (10) | |||
| 22 | DF (90) | |||
| 29 | DP (1) | |||
| 31 | DL (90) | |||
| 32 | DL (94) | |||
| 33 | DL (97) | |||
| 34 | DL (93) | |||
| 35 | DL (90) | |||
| 41 | H (1) | |||
| 45 | (1) | |||
| 46 | (1) | |||
| 48 | (1) | |||
| 49 | PB (10) | |||
| 51 | DA (90) | |||
| 53 | DH (90) | |||
| 54 | DA (90) | |||
| 56 | DC (20) | |||
| 59 | X (110) | |||
| 61 | DA (93) | |||
| 63 | DH (94) | |||
| 64 | DA (90) | |||
| 66 | DC (10) | |||
| 67 | TA (1) | |||
| 83 | X (112) | |||
| 87 | X (112) | |||
| 91 | H (29) | |||
| 95 | X (105) | |||
| 96 | X (110) | |||
| No Codes/Codes Not Listed | QA (1) | |||
| 3.0L PFI & 3.0L SPFI-MA (AXODE) | ||||
| 112 | DA (90) | |||
| 113 | DA (90) | |||
| 117 | DA (90) | |||
| 118 | DA (90) | |||
| 121 | G (1) | |||
| 122 | DH (94) | |||
| 123 | DH (90) | |||
| 124 (SPFI Only) | G (1) | |||
| 125 (SPFI Only) | G (1) | |||
| 126 | DF (90) | |||
| 144 | H (1) | |||
| 157 (SPFI Only) | DC (10) | |||
| 158 (SPFI Only) | DC (20) | |||
| 171 | H (1) | |||
| 172 | H (1) | |||
| 173 | H (1) | |||
| 174 | H (1) | |||
| 175 | H (1) | |||
| 176 | H (1) | |||
| 177 | H (1) | |||
| 178 | H (1) | |||
| 179 | HA (15) | |||
| 181 | HA (1) | |||
| 182 | HA (15) | |||
| 183 | HA (1) | |||
| 184 (SPFI Only) | G (5) | |||
| 185 (SPFI Only) | G (5) | |||
| 186 | G (7) | |||
| 187 | G (7) | |||
| 188 (SPFI Only) | HA (15) | |||
| 189 (SPFI Only) | HA (1) | |||
| 191 (SPFI Only) | HA (15) | |||
| 192 (SPFI Only) | HA (1) | |||
| 211 | NA (1) | |||
| 212 | NA (2) | |||
| 326 | DL (94) | |||
| 327 | DL (90) | |||
| 332 | DL (97) | |||
| 336 | DL (93) | |||
| 337 | DL (90) | |||
| 452 | DP (1) | |||
| 512 | QB (1) | |||
| 528 (PFI Only) | TA (1) | |||
| 536 | FD (90) | |||
| 542 | X (105) | |||
| 543 | X (110) | |||
| 556 | X (112) | |||
| 624 (SPFI Only) | T (90) | |||
| 625 (SPFI Only) | T (90) | |||
| 628 (SPFI Only) | T (90) | |||
| 629 (SPFI Only) | T (90) | |||
| 634 (SPFI Only) | T (90) | |||
| 637 (SPFI Only) | T (90) | |||
| 638 (SPFI Only) | T (90) | |||
| 639 (SPFI Only) | T (60) | |||
| 645 (SPFI Only) | T (96) | |||
| 646 (SPFI Only) | T (96) | |||
| 647 (SPFI Only) | T (96) | |||
| 648 (SPFI Only) | T (96) | |||
| 649 (SPFI Only) | T (90) | |||
| 651 (SPFI Only) | T (90) | |||
| No Codes/Codes Not Listed | QA (1) | |||
|
||||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.