Sealey EU908 User Manual

Page 36

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codes, or trouble codes that have been stored in the vehicle
computer memory because the faults have reoccurred for more
than a specified amount of key-cycles. These codes will cause
the control module to illuminate the malfunction indicator light
(MIL) when emission-related fault occurs.

‹ Pending Codes are also referred to as “maturing codes” or

“continuous monitor codes”. They indicate problems that the
control module has detected during the current or last driving
cycle but are not considered serious yet. Pending Codes will not
turn on the malfunction indicator lamp (MIL). If the fault does
not occur within a certain number of warm-up cycles, the code
clears from memory.

‹ Permanent Codes are DTCs that are "confirmed" and are

retained in the non-volatile memory of the computer until the
appropriate monitor for each DTC has determined that the
malfunction is no longer present and is not commanding the
MIL on. Permanent DTC shall be stored in non-volatile
memory and may not be erased by any diagnostic services or by
disconnecting power to ECU
.

1) Use UP/DOWN scroll button to select Read Codes from

Diagnostic Menu and press OK button. (Figure 6.3 )

Diagnostic Menu

1.System Status

2.Read Codes

3. Erase Codes

4. Live Data

5.Freeze Frame

6.I/M Readiness

7.O2 Monitor Test

8.On-Board Monitor Test

Figure 6.3

2) Use the UP/DOWN scroll button to select Stored Codes or

Pending Codes from the Read Codes menu and press the OK
button. (Figure 6.4 )

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