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Re: What Year & Model? Posted by Jonathan Scupin [Email]  (#428)  [Profile/Gallery]
(more from Jonathan Scupin) on Sat, 1 Sep 2007 10:57:56
In Reply to: Re: What Year & Model?, tc, Fri, 31 Aug 2007 21:59:04 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Here's the procedure, copied from the link (below):
Integrated Fault Diagnosis - Faults that only occur intermittently are often difficult to find. The built-in memory in the LH 2.4 stores information on such faults so that they can be identified and rectified. When a fault has been detected, the CHECK ENGINE light on the instrument panel will flash indicating that a fault has been detected. Each fault has a special code consisting of a combination of short flashes. The series of five flashes can be translated using the code tables. The memory stores up to three faults. Once a fault has been rectified, it may be necessary to erase the contents of the memory to delete any additional codes for the same fault.
To pull the fault codes from the ECU memory, perform the following:
1. Using a jumper lead with a on-off switch, ground the single pin test socket on the driver's side under the hood. The test socket consists of three test attaching plugs - round, square w/4 plugs, and L-shaped w/4 plugs. The grounding pin is attached to the toe plug of the L-shaped w/4 plugs.
2. Switch on the ignition. The CHECK ENGINE light will now come on.
3. Set the switch to ON which provides ground to ECU pin 16 signaling the ECU to send the fault codes. The CHECK ENGINE light will now turn off.
4. Watch the CHECK ENGINE light carefully. After about 2.5 seconds, it will flash briefly, signifying that the first code will now be displayed. As soon as the light has flashed, move the grounding switch that you have set-up immediately to the OFF position.
5. The first of three possible error codes will now be displayed by a series of short flashes of the CHECK ENGINE light. Note that the error code series starts and finishes with a long flash of the CHECK ENGINE light. These long flashes are not part of the code itself, but serve to indicate the beginning and end of the code.
6. Each short flash of the CHECK ENGINE light is counted as a "1". The sum of the short flashes indicates the digits number. When the switch is set to OFF, the error code will be flashed repeatedly. The next error code cannot be displayed until the switch has been set to the ON position. Note that if the test is run with the engine not running, the first code displayed will be 12231 (no rpm signal).
7. To retrieve the next error code, set the switch to ON. After a short flash of the CHECK ENGINE light, set the switch back to the OFF position. The next error code will now be displayed in a series of flashes.
8. Follow the same procedure to display the error code for the third fault, if any. If no third fault has been detected or all the faults have been fixed, the system will indicate this by a continuous series of five long flashes (00000).
9. To delete the memory contents, set the switch to ON. After three short flashes, set the switch to OFF. Note that the memory contents cannot be deleted until all codes have been read and code 00000 has been displayed.
Error Codes - CHECK ENGINE light - Malfunction indicated
12231 Off No ignition signal
12221 On No air mass meter signal
12214 On Temperature sensor signal faulty
12211 Off Incorrect battery voltage
12225 On Oxygen sensor faulty or preheat defective
12223 On Fuel-air mixture lean
12224 On Fuel-air mixture rich
12232 Off Memory voltage >1V
12212 Off Throttle position sensor malfunction of idle contact
12213 Off Throttle sensor malfunction - full throttle contact
12222 Off AIC system faulty
12111 Off Oxygen sensor adaptation fault - throttle open
12112 Off Oxygen sensor adaptation fault - idle position
12113 Off AIC adaptation fault, pulse ratio too low
12114 Off AIC adaptation fault, pulse ratio too high
00000 Off No more error codes or no faults detected
, Fri, 31 Aug 2007 19:29:17, Sat, 1 Sep 2007 10:57:56 <-- Viewing This Message
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