C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Codes H48, H72?

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Old Apr 9, 2002 | 09:04 AM
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Lone Ranger's Avatar
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Default Codes H48, H72?

My '95 shows codes of C12, H48, then H72. I know C12 means no stored CCM codes, but what do the other two mean? Specific sequence displayed:

C12
1. ---

H48
4. ---

H72
9. ---

A. ---

Perhaps H48 means no ECM codes stored and H72 means no PCM codes stored?


[Modified by 95_C4_convertible, 7:06 AM 4/9/2002]
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Old Apr 9, 2002 | 10:37 AM
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Default Re: Codes H48, H72? (95_C4_convertible)

Code H48 is for the Mass airflow sensor.
" " H72 is for your Vehicle speed sensor.

H stands for History.

All PCM/ECM-EBTCM-(ABS/TCS) & Derm DTC"S will be displayed by the CCM as history DTC'S whether they are current or history.
I e-mailed you some info re: code retrival. Did you get it? :cheers: :cheers:
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Old Apr 9, 2002 | 02:01 PM
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Default Re: Codes H48, H72? (lou sylvestri)

I got your 1st email from yesterday... haven't checked today's email yet.
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Old Feb 9, 2022 | 08:18 PM
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