ECU Check
20 February 2007 | 01:22 PM
#1
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From: Newport Pagnell
ECU Check
Hi all,
I have connected the wires to check for fault codes. However when I turn the ignition to the required position it flashes straight away.
Have read instructions that tell you that the car will do some self tests, with mine the light starts flashing almost instantly without any fan tests or anything.
Does this sound right?
The car is a V4 Type R.
Ta,
Dave
I have connected the wires to check for fault codes. However when I turn the ignition to the required position it flashes straight away.
Have read instructions that tell you that the car will do some self tests, with mine the light starts flashing almost instantly without any fan tests or anything.
Does this sound right?
The car is a V4 Type R.
Ta,
Dave
20 February 2007 | 02:33 PM
#2
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Joined: Nov 2006
Posts: 602
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From: AKA: GARIYARALLY, on the way to the next stage
20 February 2007 | 02:39 PM
#3
it will flash straight away mate but you have to watch it
In Diagnostic Mode – No Fault is indicated by the CEL continuously & evenly flashing on/off (this is also used to indicate the successful completion of an ECU Reset) SEE "OK code" in diagram below.
The long pulses (1.3 Seconds) indicate Tens and the short pulses (0.2 Seconds) indicate ones. Pulses are separated by Short Pauses (0.2 Seconds), multiple codes are separated by a Long Pause (1.8 Seconds) SEE "Trouble codes" in diagram & examples below.
The simplest way for an inexperienced mechanic to retrieve codes is to write the codes down in a sort of Morse Code (dots and dashes), and start a new line when you get a 1.8 Second pause (for NEW code), and then add the actual numbers up after code retrieval is completed.
Code ITEM
11 Crankshaft position sensor
12 Starter switch
13 Camshaft position sensor
21 Engine coolant temperature sensor
22 Knock sensor
23 Mass air flow sensor
24 Idle air control solenoid
31 Throttle position sensor
32 Oxygen sensor
33 Vehicle speed sensor 2
35 Purge control solenoid valve
42 Idle switch
44 Wastegate control solenoid valve
45 Pressure sensor – Pressure exchange solenoid valve
51 Neutral position switch
In Diagnostic Mode – No Fault is indicated by the CEL continuously & evenly flashing on/off (this is also used to indicate the successful completion of an ECU Reset) SEE "OK code" in diagram below.
The long pulses (1.3 Seconds) indicate Tens and the short pulses (0.2 Seconds) indicate ones. Pulses are separated by Short Pauses (0.2 Seconds), multiple codes are separated by a Long Pause (1.8 Seconds) SEE "Trouble codes" in diagram & examples below.
The simplest way for an inexperienced mechanic to retrieve codes is to write the codes down in a sort of Morse Code (dots and dashes), and start a new line when you get a 1.8 Second pause (for NEW code), and then add the actual numbers up after code retrieval is completed.
Code ITEM
11 Crankshaft position sensor
12 Starter switch
13 Camshaft position sensor
21 Engine coolant temperature sensor
22 Knock sensor
23 Mass air flow sensor
24 Idle air control solenoid
31 Throttle position sensor
32 Oxygen sensor
33 Vehicle speed sensor 2
35 Purge control solenoid valve
42 Idle switch
44 Wastegate control solenoid valve
45 Pressure sensor – Pressure exchange solenoid valve
51 Neutral position switch
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