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Old 06-10-2006, 10:48 PM   #1
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Default Finding Trouble Codes Without Scanner

Can someone tell me if this would work on a 95 Bonne SSEi, to find the trouble codes for Engine Light? See copy and paste below or a more detailed view through link.

Thanks
http://autorepair.about.com/library/...l-dtcs-69a.htm

Diagnostic Trouble Codes - 1995
Pontiac
13 Open Oxygen Sensor Circuit
14 Coolant Temperature Sensor (High Temp Indicated)
15 Coolant Temperature Sensor (Low Temp Indicated)
16 System Voltage Low
17 Camshaft Position Sensor Circuit Error
21 Throttle Position Sensor (Signal Voltage High)
22 Throttle Position Sensor (Signal Voltage Low)
23 Intake Air Temperature (IAT) Sensor Circuit
24 Vehicle Speed Sensor (VSS) Circuit
25 Intake Air Temp (IAT) Sensor (High Temp Indicated)
26 Quad Driver Fault
28 Transaxle Range Switch Error
33 MAP Sensor Circuit (Signal Voltage High
34 Mass Air Flow Sensor (MAF) Circuit
35 Idle Air Control (IAC) System
36 Ignition 24X Signal Circuit Error
37 TCC Brake Switch Error
41 Ignition Control (IC) Timing Circuit Error
42 Ignition Control (IC) Circuit
43 Knock Sensor (KS) Circuit
44 Oxygen Sensor Circuit (Lean Exhaust Indicated)
45 Oxygen Sensor Circuit (Rich Exhaust Indicated)
51 Mem-Cal Error
53 System Voltage High
54 Fuel Pump Circuit (Low Voltage)
58 Transmission Temperature Sensor Circuit (High Temp)
59 Trans Fluid Temp (TFT) Sensor (High Voltage/Low Temp)
66 Low A/C Refrigerant Charge
70 A/C Pressure Sensor (High) Circuit
72 Vehicle Speed Sensor (VSS) Circuit
75 Digital EGR #1 Solenoid Error
76 Digital EGR #2 Solenoid Error
77 Digital EGR #3 Solenoid Error
79 Transmission Fluid - Over Temperature
80 Transmission Component Slipping
82 Ignition Control 3X Signal Error
85 PROM Error
86 Analog/Digital (A/D) Error
87 Erasable Programmable Read Only Memory (EEPROM) Error
90 TCC Error
96 Transmission System Voltage Low
98
99 Invalid PCM Program

To extract a trouble from the computer for diagnostic purposes, the Assembly Line Communication Link (ALDL) connector is used.

Ground terminals A and B with the ignition "ON" and engine not running. The system will enter the diagnostic mode. In this mode, the computer will display a 12, three consecutive times, by flashing the "CHECK ENGINE", "SERVICE ENGINE SOON" or "MALFUNCTION INDICATOR LAMP" or light. A 12 consists of one flash, a short pause, then two flashes in rapid succession.

After 12 is displayed, any stored trouble * will be displayed by flashing the "CHECK ENGINE", "SERVICE ENGINE SOON" or "MALFUNCTION INDICATOR LAMP" light. All * are displayed 3 times each then a 12 will repeat. In the diagnostic mode, the computer will also energize all computer controlled relays and solenoids.


ALDL Connector (Located Underdash)
The ALDL diagnostic connector is located in the passenger compartment.
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Old 06-10-2006, 11:01 PM   #2
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No. That was only good through the 93 model year. Please read Techinfo.
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Old 06-10-2006, 11:13 PM   #3
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Quote:
Originally Posted by willwren
No. That was only good through the 93 model year. Please read Techinfo.
Thanks willwren, since it specifically stated "95 Pontiac" I had hope. I desperately need to figure out the DTC codes for both the engine a ABS light. The 95 is almost done except it won't pass emissions or safety without these repairs done.
I have no more budget to purchase the reader. I guess I could have bought the obd reader instead of the torque wrench but it'* done. I'll keep trying somehow. By the way, I got the SC back together and it seems to be running well....Thanks for your help.
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Old 06-11-2006, 12:17 AM   #4
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You cannot diagnose the ABS or Traction systems with an OBD scantool. You'll have to take it to the dealer for that, and repairs to those systems are typically very painfully expensive.
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Old 06-11-2006, 12:45 PM   #5
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I had hoped that by replacing both front wheel bearing and the fact that the drivers front abs was never connect from the previous owner, that it would solve the problem. One thing that still come to mind is the fact that while doing the replacement, I removed the white plactic cover that holds the wire and harness to the abs, but didn't remove the blue plastic cover that surrounded the bearing that went into the housing. It was a bit of a tight fit but it did go in. You can refer to my thread when I was going through the re & re. Thanks again willwren. To refer to the original post re the Front Wheel Bearing and the plastic cover, it'* on page 2 Posted: Mon Apr 17, 2006 12:21 pm

See Link Below...


http://www.bonnevilleclub.com/forum/...r=asc&start=20
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Old 06-11-2006, 12:54 PM   #6
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I'm not sure what piece you're talking about in that topic, so I'll have to check one of mine the next time I have one up in the air.

If the connector is attached, it should be reading. But you also have two sensors on the rear, the PMV assembly (pressure modulator valve assembly under your airbox) and EBCM (electronic brake control module under the carpet on the firewall to the right of your gas pedal OR under the hood near the MC, two different locations on my cars, yours should be the latter).

Both of these last two components are very expensive. I know from experience. The EBCM rarely fails, but the PMV is about as likely as a WSS.
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Old 06-12-2006, 07:39 PM   #7
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Ok, just so I understand this correctly, what type and model of scanner am I looking for to read the DTC codes, in other words the codes to read why the engine light is on? Secondly, to read why the ABS light is on, is that something only the dealer can tell me? Thirdly, if I purchase one, which would you recommend since I would like it to read codes to the other cars I have. Also the next car I purchase will be a newer Bonne and would like it to read those codes also.

I know there'* alot of question but any help would be appreciated.

Thanks
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