Honda Ascot OBD Check Engine Cracking

Honda Ascot OBD Check Engine Cracking

The Honda Ascot is a compact sedan manufactured by Honda and marketed only in Japan from 1989 to 1997. The first generation produced two versions based on the Honda Accord CB series called the Ascot and from 1993 to 1996 a “pillared hardtop” called the Ascot Innova. The Innova shared much of its mechanicals with the European-market Accord manufactured at the Honda UK facility in Swindon, England, and was essentially the badge engineered Rover 600. The second generation was a platform improvement, shared with the Japan-only sedan called the Honda Rafaga. The “Ascot” name was chosen with reference to the Ascot Racecourse and Ascot tie, in order to add the model an alleged air of class and elegance.

 

PLEASE SELECT THE OBD SOCKET OF YOUR CAR BELOW AND FOLLOW THE JUMPER SETTINGS.

Year range: 1989 to 2001 Locations: Under the passengers seat. Above the passengers side kick panel. In the center console.

Year range: 1998 to 2009 Locations: Under the drivers side dash panel. Inside or below the glovebox.

PLEASE FOLLOW THE JUMPER SETTING ABOVE:

PLEASE NOTE:If after following the instructions below the Check Engine Light does not flash it either means there are no fault codes or there is a connection error. To test connection, remove the TPS and run the engine then recheck codes.



INSTRUCTION:
1. If possible run the engine to bring the oxygen sensor up to operating temperature then switch the engine off.
2. Connect the terminals using your own jumper wire, as shown in the diagram above.
3. Turn ignition ON, the Check Engine Light (CEL) should be flashing on your car dashboard.

4. Read codes as described in the Code Format Description below.
Code Format Diagram

READING CODE INSTRUCTION
• Each code is made up of two series of flashes.
• The long flashes indicate the ‘tens’ digits.
• The short flashes indicate the ‘ones’ digits.
• A long pause separates each code sequence.
• Code Format Diagram shows above is code No. 12.
• If nolongflashes are observed then the code is a straight count of short flashes. i.e. 4 flashes = code 4.

LIST OF TROUBLE CODE

Code	Sensor/Circuit	Cause	Solution
0	ECU	ECU Bad, or ECU Fuse Blown	Check ECU Fuse, Check Eeprom is in socket correctly and not loose
1	Oxygen Sensor	Loose Wiring, Bad Sensor	Check wiring, check sensor *
3	Map Sensor	Loose Wiring, Bad Sensor	Make sure sensor is plugged in and wiring is correct
4	CKP (Crankshaft Position Sensor)	Loose Wiring	Check that distributor plugs are connected and wiring is not loose
6	Coolant Temperature	Loose Wiring, Bad Sensor	Check that plug is connected and wiring is not loose
7	TPS (Throttle Position Sensor)	Loose Wiring, Bad Sensor	Make sure sensor is plugged in and wiring is correct
8	TDC Position (Top Dead Center)	Loose Wiring	Check that distributor plugs are connected and wiring is not loose
9	CYP (No. 1 Cylinder Position)	Loose Wiring	Check that distributor plugs are connected and wiring is not loose
10	IAT (Intake Air Temperature)	Incorrect Harness Plug, Bad Sensor	Check that correct sensor plug is connected, Replace Sensor
12	Exhaust Gas Recirculation	Incorrect Harness Plug, Bad Sensor	Check wiring, check sensor *
13	Barometric Pressure	Bad Sensor	Check wiring, check sensor *
14	IACV (Idle Air Control Valve)	Incorrect Harness Plug, Bad Sensor	Check that correct sensor plug is connected, Replace Sensor
15	Ignition Output Signal	Loose Wiring, Bad Sensor	Check wiring, most likely wiring will be the issue
16	Fuel Injector	Loose Wiring	Check wiring, most likely wiring will be the issue
17	VSS (Vehicle Speed Sensor)	Loose Wiring, Bad Sensor	Check that plug is connected and wiring is not loose
19	Lock-Up Control Solenoid	Loose Wiring, Bad Sensor	Check wiring, check sensor *
20	ELD (Electronic Load Detector)	Loose Wiring, Bad Sensor	Check wiring, check sensor *
21	VTEC Solenoid	Loose Wiring, Bad Sensor	This is common, make wire is ran to correct ecu pin location (pin D14)
22	VTEC Pressure Switch	Loose Wiring, No Oil Pressure	Check wiring, check sensor *
23	Knock Sensor	Loose Wiring, Bad Sensor	Check wiring, check sensor *
4	Oxygen Sensor Heater Circuit	Loose Wiring, Bad Sensor	Check wiring, check sensor *
43	Fuel System Supply	Low Fuel Pressure, Vacuum Leaks	Make sure fuel pressure is adequate at idle (40-50psi base), check for vacuum leaks

Erasing procedure.

• After the faults have been rectified, trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
• Switch ignition OFF.
• Remove radio fuse (7.5A) from underhood fusebox for 10 seconds minimum
• Reinstall fuse.
• Repeat checking procedure to ensure no data remains in ECM fault memory.

NEVERMIND THE TAGS BELOW.

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