Engine/Transmission (1994 - 1998) Code reader device

[Gifford]

Whats the most (least... ) I'd have to spend to get a decent code reader for my 97 12V? And, where can I find the procedure to manually get the truck to flash error codes?

 

[SEmerson]

A 12v will not flash codes. You have to have a reader. I got this one and am very happy with it. http://www.obd-2.com/

 

[Keith1]

my 95 will blink the codes from the check engine light[turn ignition on and off three times] then just use the service manual to repair don't need a reader in my opinion

 

[illflem]

As kerber said, just turn the key off/on three times and count the flashes, they are all two digit numbers with a longer space between the pairs. You will always get a 55, it just means end of test.





11 = no crank reference signal detected during engine cranking

12 = no codes. Problem with the battery connection. direct battery input to the PCM disconnected within the last 50 ignition key-on cycles.

15** = no vehicle speed sensor signal. No VSS signal detected by the PCM during driving conditions.

23** = intake air temp sensor voltage high or low. intake manifold air temp sensor circuit signals above or below the acceptable voltage.

24** = (TPS) voltage too high or low. Test throttle position sensor.

33 = air conditioner clutch relay circuit. an open or shorted condition detected in the air conditioning clutch relay circuit.

34 = open or shortened condition detected in the speed control vacuum or vent solenoid circuits.

37** = (TCC) solenoid circuit open or shortened

37** = trans temp sensor voltage too above or below acceptable voltage values

41** = problem with the charging system. When voltage from ASD relay is below 11. 75-volts.

42 = ASD control circuit indicates an open or shorted circuit condition.

44 = battery temp sensor volts malfunction. problem with bat temp voltage circuit in the PCM

45 = trans overdrive solenoid circuit malfunction.

46** = charging system voltage too high.

47** = charging system voltage too low. bat volts sense input below target charging voltage during engine operation and no significant change in voltage detected during active test of alternator output.

53 = internal PCM failure detected.



55 = COMPLETION OF FAULT CODE DISPLAY ON CHECK ENGINE LAMP. THIS IS THE END OF MESSAGE CODE.



63 = controller failure. EEPROM write denied. check the PCM.

68** = PCM not active or a fault condition to the EGR sensors and/or EGR solenoid

 

[bighammer]

I know mine will do the idot light flash thing, but for ABS diagnosis you need t scan tool interface.



SEmerson, I'd be interested in what kind of info you get with yours.

 

[whiteknight]

bighammer,

My 96 with RWAL will "flash" codes as well. But if you have 4 wheel ABS then you have to have a code reader.



For the RWAL in my repair manual, it says to find the RWAL diagnostic connector which is on the bottom of the knee bolster. Use a jumper wire to momentarily ground terminal 13 (the black wire terminal) of the diagnostic connector and watch the amber ABS light on the dash. The red Brake light will be on also. It says the fault code will be displayed by counting the long and short flashes:



1-Not used

2-Open Isolation valve wiring or bad control module

3-Open dump valve wiring or bad control module

4-Closed RWAL valve switch

5-Over 16 dump pulses generated in 2wd vehicles (disabled for 4wd)

6-Erratic speed sensor reading while rolling

7-Electronic control module fuse pellet open, isolation output missing, or valve wiring shorted to ground

8-Dump output missing or valve wiring shorted to ground

9-Speed sensor wiring/resistance (usually high reading)

10-Speed sensor wiring/resistance (usually low reading)

11-Brake switch always on, RWAL light comes on when speed exceeds 40 mph

12-Not used

13-Electronic control module phase lock loop failure

14-Electronic control module program check failure

15-Electronic control module RAM failure



hope this might be helpful to someone.

 

[SEmerson]

I have got a egr flow too low error in my 97. Probly becouse it is unpluged. That is the only error I have seen in my 97. I bought the reader for my 2001. Becouse I was getting a mil light. And I need to clear it.