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Old 09-07-2011, 07:32 PM   #1
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Default Olds Eighty-Eight ABS Trouble Codes

Hey forum,

I just got back from school with some codes I received when I scanned my Oldsmobile. They are ABS related and I need a link or help deciphering them.

They are:
1. Code 33
2. Code 37
3. Code 45
4. Code 61

Thanks,
Martin
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Old 09-07-2011, 07:55 PM   #2
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33 map sensor signal out of range, high
45 oxygen sensor rich exhaust
61 a/c system performance or degraded oxygen sensor signal

I don't have a code 37.
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Old 09-07-2011, 08:39 PM   #3
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Year would help.
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Old 09-07-2011, 10:04 PM   #4
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1993 is the year seņor
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Old 09-07-2011, 10:06 PM   #5
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What is code 37? Could it be that my OBD is version 1.5, cause I saw that there was an update between the 1992-1993 models
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Old 09-07-2011, 10:12 PM   #6
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OBD 1.5 was 1994-95. You still have OBD1.

I think these are right from memory...

33
RF Wheel Speed Sensor Circuit Open/Shorted To Ground or Battery

37
High System Voltage

61
LF Hold Valve Solenoid Malfunction
– Open circuit in the solenoid circuit

Can't remember code 45.
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Old 09-07-2011, 10:17 PM   #7
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thanks, so apparently I have a bad braking system in my 88, right?
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Old 09-07-2011, 10:21 PM   #8
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Dammit, old memory isn't what it used to be...

The following is a list of the OBD-I trouble codes for the four wheel anti-lock brake system.
Code 21: right front speed sensor or circuit open
Code 22: missing right front speed signal
Code 23: erratic right front speed signal
Code 25: left front speed sensor or circuit open
Code 26: missing left front speed signal
Code 27: erratic left front speed signal
Code 29: simultaneous drop-out of front speed sensors
Code 35: vehicle speed sensor or open circuit
Code 36: missing vehicle speed sensor signal
Code 37: erratic vehicle speed sensor signal
Code 38: wheel speed error
Codes 41 through 54: control valves
Codes 61 through 63: reset switches
Code 65 and 66: open or shorted pump motor relay
Code 67: open motor circuit or shorted BPMV output
Code 68: locked motor or shorted motor circuit
Codes 71 through 74: memory errors
Code 81: brake switch circuit shorted or open
Code 86: shorted anti-lock indicator lamp
Code 87: shorted brake warning lamp
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Old 09-07-2011, 10:25 PM   #9
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What'* code 33 then
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