WS5 Scan Tool Diagnostics

Scan Tool Diagnostics


Make Honda                 Model Accord                                    Year 2004


1. Scan Tool Data

Type of information (PID = Parameter Identification)	Letter to describe it E.g. TPS	Value of data	Unit for data E.g. volts
Engine RPM	RPM	793	RPM
Engine Coolant temperature	ECT	91	C
Intake air temperature	IAT	65	C
Fuel Injection opining pulse	FI	2.41	ms
Vehicle Speed	VS	0	Km
Oxygen Sensors(S)	O2 (S)	0.6	V
Fuel Tim	Short long	1.02 0.99	%
Power Steering		0.05	V
Idle control	Ic	On
Air conditioning condition	A/C	On/off	C
Exhaust Gas Recirculation	EGR	0	lef
Fuel Evap or purge condition		no	%
Malfunction Indicatr light	MIL	YES
Bometric Pressure	Bp	8.5	Hz

Trouble Cods or Fault Codes


2.1 Find where the Codes are listed
2.2 Record any codes, and what system and condition they describe in the chart below

Code number	System affected	Condition described
03 -02	MAP sensor	High voltage
10 - 02	IAT sensor	High voltage
06 - 02	ECT sensor	Current high input

5.2 Record the PIDs that have changed bellow

Type of information (PID= parameter identification)	Letters to describe it	Value of data	Using for data
Intake air temperature	IAT	16	C
Throttle position sensor	TPS	0.00	C
Manifold air pressure	MAP	110	kpa
Idle air control	IAC	1.20	V

Visual inspection to find fault


6.1 Do  a visual inspection under the hood to find where the problem is. Use information from the code to know where to look for the problem and what type of problem to look for.
Describe problem you found:

Disconnected the TPS sensors connection just found the problem.


7  Repair fault


7.1 Plug back in the connector, or repair problem found
7.2 Describe what you did :

Put them back in our plug


8. Recheck Data PIDs


8.1 Recheck the data with the scan tool
8.2 Record the voltage for the PIDs related to the problem, to confirm they are back to normal.

Type of information (pID=Parameter Identification)	Letter to describe it	Value of data	Units for data
Map Sensor	Map	102	Kpa
Idle Air Control	1AT	60	C
Engine coolant Temperature	ECT	90	C

9. Clear Codes
Describe what you did to clear codes :

We have to turn off the engine and put the disconnected plug, and start the engine, it will clear all codes. For this exercise the key should be on and engine should be off, and eraser the code on the scan tool.

10. Rechecks for codes and record codes in system now:


On recheck there is no codes on the scan tool.

11. Discuss the importance live data when full finding


We have to check the data when engine is running smoothly, and as good condition, so we can compare these data with faulty components data.

12. Explain the need for parameters when checking live data


They are very important to check the parameter in different conditions of the engine. Its for intake the engine load, how much air is coming in.

13. Discuss how a scan tool can aid you when fault finding


For findings faults the scan tool give us code number in type of information, PID wave of the scanner. I have found the scan tool to use easy than oscilloscope.