Ford OBD/OBD2 Codes >> Probe 2.5L (1993 – 1995)

Model Year Engine identification System
Probe 2.5L 1993-95 VIN  position 8 =  B   MECS

General information

  • Malfunction indicator lamp (MIL) will illuminate continuously if permanent faults are recorded.
  • Malfunction indicator lamp (MIL) will illuminate briefly and then switch off if intermittent faults are recorded.
  • ECM operates in backup mode if sensors fail , to enable vehicle to be driven to repair shop.
  • Trouble codes can be displayed by the MIL or by using an analogue voltmeter or Scan Tool connected to the data link connector (DLC).

Accessing

Using malfunction indicator lamp (MIL)

  • Ensure ignition switched OFF.
  • Access data link connector (DLC) 1
  • Jump data link connector (DLC) terminals STI and GNO 2
  • Switch ignition ON .
  • Count MIL flashes. Note trouble codes. Compare with trouble code table .
o 1.2 second flashes indicate the ‘tens’ of the trouble code 3 [A).
o 0.4 second flashes indicate the ‘units’ of the trouble code 3 [C).
o A 1.6 second pause (MIL OFF) separates ‘tens’ and ‘units’ 3 [B).
o A 0.4 second pause (MIL OFF) separates each flash 3 [D).
o A 4 second pause separates each trouble code 3 [E) .
o For example: Trouble code 12 displayed D. Throttle position (TP) sensor.
  • Switch ignition OFF.
  • Trouble codes can also be displayed by using a Scan Tool connected to the data link connector (DLC) 1

Using analogue voltmeter

  • Ensure ignition switched OFF.
  • Access data link connector (DLC) 1
  • Connect an analogue voltmeter between data link connector (DLC) terminal STO and ground 1
  • Set analogue voltmeter to a DC voltage range of 0-20 V.
  • Jump data link connector (DLC) terminals STI and GND 4
  • Switch ignition ON.
  • Count voltmeter needle deflections. Note trouble codes. Compare with trouble code table.
o 1.2 second needle deflections indicate the ‘tens’ of the trouble code 3 [A).
o 0.4 second needle deflections indicate the ‘units’ of the trouble code 3 [C).
o A 1.6 second pause separates ‘tens’ and ‘units’ 3 [B) .
o A 0.4 second pause separates each needle deflection 3 [D).
o A 4 second pause separates each trouble code 3 [E) .
o For example: Trouble code 12 displayed 3. Throttle position (TP) sensor.
  • Switch ignition OFF.
  • Trouble codes can also be displayed by using a Scan Tool connected to the data link connector (DLC) 1

Erasing

  • Ensure ignition switched OFF.
  • Disconnect battery ground cable.
  • Depress brake pedal for 5-10 seconds.
  • Reconnect battery ground cable.
  • Repeat accessing procedure to ensure no trouble codes remain in ECM fault memory.
NOTE: Disconnecting battery ground lead may also erase memory from electronic units, such as radio.

Trouble code  identification

Flash code Fault location Probable cause
2 Crankshaft position (CKP) sensor 2 Wiring, CKP sensor (at crankshaft pulley), ECM
3 Camshaft position (CMP) sensor Wiring, CMP sensor, ECM
4 Crankshaft position (CKP) sensor 1 Wiring, CKP sensor (in distributor), ECM
5 Knock sensor (KS) Wiring, KS, ECM
8 Volume air flow (VAF) sensor Wiring, VAF sensor, ECM
9 Engine coolant temperature (ECT) sensor Wiring, ECT sensor, ECM
10 Intake air temperature (IAT) sensor Wiring, IAT sensor, ECM
12 Throttle pOSition (TP) sensor Wiring, TP sensor, ECM
14 Barometric pressure (BARO) sensor ECM
15 Heated oxygen sensor (H02S), bank 2 voltage below 0.55 V Fuel pressure low, wiring, H02S, ECM
16 Exhaust gas recirculation (EGR) valve position sensor EGR hose(s), wiring, EGR valve position sensor, ECM
17 Heated oxygen sensor (H02S), bank 2 no voltage change Wiring, H02S, ECM
23 Heated oxygen sensor (H02S), bank 1 voltage below 0.55 V Fuel pressure low, wiring, H02S, ECM
24 Heated oxygen sensor (H02S), bank 1 no voltage change Wiring, H02S, ECM
25 Fuel pressure regulator control solenoid Wiring, fuel pressure regulator control solenoid, ECM
26 Evaporative emission (EVAP) canister purge valve Wiring, EVAP canister purge valve, ECM
28 Exhaust gas recirculation (EGR) solenoid,vacuum Wiring, EGR solenoid, ECM
29 Exhaust gas recirculation (EGR) solenoid, vent Wiring, EGR solenoid, ECM
34 Idle air control (lAC) valve Wiring, lAC valve, ECM
41 Intake manifold air control solenoid 1 Wiring, intake manifold air control solenoid, ECM
46 Intake manifold air control solenoid 2 Wiring, intake manifold air control solenoid, ECM
67 Engine coolant blower motor relay, low speed Wiring, engine coolant blower motor relay, ECM
69 Engine coolant blower motor temperature sensor Wiring, engine coolant blower motor temperature sensor, ECM