1 solenoid valveĦ3 - Open or short circuit in no. 2 speed sensor signal malfunctionĦ2 - Open or short circuit in no. 1 speed sensor signal malfunctionĤ6 - Open or short circuit in no.
#1989 toyota diagnostic codes manual#
Please consult your repair manual for in depth diagnosis, testing and troubleshooting.Ģ1 - Main oxygen sensor signal (on left bank)Ģ7 - Sub-oxygen sensor signal (on left bank)Ģ8 - Main oxygen sensor signal (on right bank)Ģ9 - Sub-oxygen sensor signal (on right bank)Ĥ2 - No. The list below will tell you where the problem lies but will not go into diagnosis. ABS & TRAC codes are cleared by keeping the jumper wire in Tc and E1 and then pressing the brake pedal 8 or more times within 3 seconds.
#1989 toyota diagnostic codes how to#
Note: airbag code 41 cannot be cleared using this method, here's how to clear it. If the codes reappear it means you haven't fixed the problem. After you've cleared the codes go for a road test. You can also clear codes by removing the negative lead on the battery for the same amount of time, but you'll lose all your clock, radio, and memory settings. I know this sounds a little confusing but it's very simple once you do it or see an example yourself.Ĭlick here to see a video of engine code 71 (2.5 MB), single code output.Ĭlick here to see a video of transmission codes 63 & 67 (2.9 MB), multiple codes output.ģ) Once repairs have been made, clear all stored codes by removing the 20 amp EFI fuse shown above for 10 seconds or more with the ignition switch off. If there are no codes stored then the light will blink continuously, every. Once all stored codes have been output there will be a 4.5 second pause and then the codes repeat. In this case the lowest numbered code is output first followed by a 2.5 second pause between other higher numbered codes in increasing numerical order. The codes are all two digits, the first digit is output first, it will pause 1.5 seconds and then output the second digit outputs. For TRAC codes, you count the blinks on the "TRAC" light. For ABS codes, you count the blinks on the "ANTILOCK" light. For airbag codes, you count the blinks on the "airbag" light. For transmission codes, you count the blinks on the "O/D OFF" light. For engine codes, you count the blinks on the check engine light. The diagnostic code is read by counting the number of blinks on the appropriate light. For air bag codes, ABS and TRAC codes, you place the jumper wire in Tc and E1.Ģ) Turn the ignition switch on. For engine and transmission codes you place the jumper wire in Te1 and E1. You can also connect these terminals using the check connector located in the engine bay. Connect terminals Te1 and E1 by placing a short piece of wire in the TDCL diagnostic port under the steering wheel. For checking transmission codes the OD switch must in on (pushed in). Tools Needed:ġ) In order to read the code the battery must be 11v or higher, throttle valve fully closed, transmission in neutral position, and AC turned off. All you need to do is plug the scan tool into the diagnostic port and it displays any codes. They're not cheap but they can provide many more codes and this makes diagnosis easier. Reading codes from these systems requires you to use an OBDII code reader. If you have a 1995 LS on up then you have an OBDII system. If you have a 1990-1994 LS then you have an OBDI system (On-board diagnostics I). The only thing I can tell you is to follow the diagnostic procedure in the repair manual, or you can search on the forums listed on the links page. Please do not contact me regarding a specific code you have. It's simple and will only take you a few minutes. Checking for any codes is the first step is diagnosing problems and so everyone should know how to do this. Check engine light on? O/D OFF light blink periodicly? This tutorial will show you how to read the codes for the engine, transmission, airbag, ABS and TRAC systems and how to clear them.
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