Common questions

What does DTC 99 mean on a Ford?

What does DTC 99 mean on a Ford?

The lamp stays on when OSC is toggled to prevent vehicle from shifting into overdrive position. DTC 99 indicates a fault in the E4OD transmission Electronic Pressure Control (EPC) circuit. Under this condition, the lamp serves as the Transmission Malfunction Indicator Lamp (TMIL).

What is the code for Ford diagnostic trouble?

Refer to our Generic OBD II code list for definitions on all other Ford diagnostic trouble codes. P1000 OBD System Readiness Test Not Complete P1001 KOER Test Cannot Be Completed P1039 Vehicle Speed Signal Missing or Improper P1051 Brake Switch Signal Missing or Improper P1100 Mass Air Flow Sensor Intermittent

What is the DTC code on a Ford 87?

On 87–90 models, a base readout of 4030 indicates engine running self test has been entered. On 87–90 models, DTC output will be the RH three digits displayed. Service pass code is 4011. On 91–97 models, DTCs will be displayed on message center. On all models, to exit Self test, turn ignition Off.

What does cat DTC stand for in Caterpillar?

Cat DTC : Cat diagnostic code information that follows is utilized by Caterpillar machines that are equipped with Caterpillar electronic controls. Component identifiers, failure mode identifiers, and module identifiers are pieces of information that assist service personnel in diagnosing system problems of the machine.

What are the P codes for fuel metering?

P0XXX Codes Trouble Code Fault Location Probable Cause P0000 – P0099 (Fuel and air metering and auxiliary emission control) P0000 No fault P0001 Fuel volume regulator control -circuit open Wiring, regulator control solenoid P0002 Fuel volume regulator control -circuit range/performance Wiring, regulator control solenoid

What is the diagnostic code for Ford 6.0 Powerstroke?

P1725 Insufficient engine speed increase during self-test System voltage out of self-test range. Repeat the self-test. P1726 Insufficient engine speed decrease during self-test System voltage out of self-test range. Repeat the self-test. P2262 MAP Turbo/supercharger boost pressure not detected — mechanical Minimum boost under load.

What are the P codes for mechanical fault?

P0016 Crankshaft position/camshaft position, bank 1 sensor A -correlation Wiring, CKP sensor, CMP sensor, mechanical fault P0017 Crankshaft position/camshaft position, bank 1 sensor B -correlation Wiring, CKP sensor, CMP sensor, mechanical fault

What is the p code for a fuel volume regulator?

P0001 Fuel volume regulator control -circuit open Wiring, regulator control solenoid P0002 Fuel volume regulator control -circuit range/performance Wiring, regulator control solenoid P0003 Fuel volume regulator control -circuit low Wiring short to earth, regulator control solenoid P0004

How to read FORD OBD diagnostic trouble codes?

No Heated Oxygen Sensor (HO2S) switching detected (front – HO2S) If using 12Vdc circuit test light, pay careful attention to length of pauses in order to read codes correctly. If using MIL/CHECK ENGINE light, service codes are displayed as flashes. Connections are displayed in image.

What does base readout on Ford 87-90 mean?

On 87–90 models, a base readout of 4255 indicates that KOEO self test has been entered. On 87–90 models, a base readout of 4030 indicates engine running self test has been entered. On 87–90 models, DTC output will be the RH three digits displayed.

What’s the trouble code for a Ford engine?

Trouble Code. Fault Location. Probable Cause. P0171. Fuel trim (FT) system too lean, bank 1. Intake/exhaust leak, AIR system, MAFNAF sensor, fuel pressure/pump, injector (s), HO2S. P0300. Random Cylinder Misfire (Cylinder Not Specified) Spark plug (s), HT lead (s), injector (s), ignition coil (s), low compression, wiring.

The lamp stays on when OSC is toggled to prevent vehicle from shifting into overdrive position. DTC 99 indicates a fault in the E4OD transmission Electronic Pressure Control (EPC) circuit. Under this condition, the lamp serves as the Transmission Malfunction Indicator Lamp (TMIL).

How to pull Ford check engine light codes without scantool?

How to pull Ford Codes without a scantool To extract DTCs from the computer for diagnostic purposes, the Self Test connector is used. Start engine and bring to normal operating temperature. If engine will not start or stalls after starting, proceed with next step. Turn the key “OFF”, then wait ten seconds.

What is the code for throttle position sensor?

Simply match up the code on the left with it’s description. The code may not include the “P”. Throttle position sensor (TPS). No change during throttle depression Tach, circuit, SPOUT grounded. SPOUT circuit, open circuit Tach, circuit, SPOUT grounded.

What are the OBD codes for Ford cars?

Ford OBD1 Codes 2 Digit Codes 29 Vehicle Speed Sensor problem – VSS 31 (O,R,M) EVP – EVP signal is/was out of range – E 182 (M) Fuel system was rich at idle Single, Rig 183 (M) Fuel system was lean at idle Single, Rig

What is the ho2s code on a Ford?

HO2S circuit indicates system rich (left HO2S). 94 Secondary Air Injection system Inoperative (left side). 95 Fuel pump secondary circuit failure. 3 Digit Ford Codes 111

What are the diagnostic codes for Ford 3?

(M) Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected – Fuel control (M) Ignition TACH signal was erratic (module/wiring) or SPOUT circuit fault – Ignition Systems (M) SPOUT circuit failure, timing defaulted to 10 degrees – follow code 213 diagnosis

What do the codes mean on Ford OBD?

The codes are defined as to what system is affected. When possible we give the more descriptive name of the component and the more commonly known OBD II component name. This information combined with proper testing procedures, specifications, and tools like a digital multimeter can help you fix the vehicle right the first time.

Where does the fuel injection code go on a Ranger?

SERIES FUEL/AIR INJECTION CODES ON VEHICLES WITH DUAL OXYGEN SENSORS REFER TO THE LEFT OR FRONT SENSOR. EXCEPT: 1984-1988 3.8L ENGINE S: RIGHT SENSOR

What is dealer 4 on a Ford 91?

On 91–95 models, depress gauge select button three times until ‘‘DEALER 4’’ is displayed. On all models, to initiate Self test, using a jumper wire, jump self test connectors STI to SIG RTN. Accessing DTCs.

What are the diagnostic codes for Ford EEC-IV?

Ford EEC-IV Diagnostic Trouble Codes CODE MEANING 1 – 8 Cylinder No (as code) low power 9 Pass 10 Cylinder No. 1 low 11 Cylinder No. 2 low

On 87–90 models, a base readout of 4030 indicates engine running self test has been entered. On 87–90 models, DTC output will be the RH three digits displayed. Service pass code is 4011. On 91–97 models, DTCs will be displayed on message center. On all models, to exit Self test, turn ignition Off.

What does code 25 on Ford OBD1 mean?

Count the first set of flashes on the test light and record it such as 2. The flashing will pause then start again delivering the sound part of the code such as 5 creating the code 25. Once repairs have been made to clear the codes remove the negative battery cable for thirty seconds and reconnect. What do they mean?

Where can I find the trouble code on my Crown Victoria?

Trouble codes can be displayed by the MIL or by using an analogue voltmeter or Scan Tool connected to the data link connectors (DLC) 1 and 2: Automatic transmission in ‘PARK’. All auxiliary equipment, including air conditioning, switched OFF.

Is the P0420 DTC code a trouble code?

The P0420 code is a very popular one and that’s why there’s a site dedicated to that specific trouble code. If your car’s check engine light is on, get that code read in case it’s a P0420. A P0420 code is a trouble code on OBD-II equipped vehicles.

What is the low current circuit on a Ford EEC?

Every Ford EEC Power Relay has two basic circuits and for the purpose of our discussion, we’ll call them: A low current circuit. This circuit can be identified by the wires labeled with the numbers 1 and 2. The low current circuit is the control circuit that ‘closes’ or ‘opens’ the high current circuit.

Where does the power come from on a Ford EEC relay?

This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender). Ground is always present on circuit 1.

What happens if the timing belt snaps on a Ford Escort?

Fortunately for many Ford owners, there is enough clearance between the valves and the pistons so no harm will come to the engine if the belt snaps. But on older Escorts (up to 1985) with 1.6L engines as well as 1989 and up Probes with 2.0L or 2.2L four cylinder engines, a timing belt failure will usually bend a bunch of valves.

Author Image
Ruth Doyle