Verification of Vehicle Repair
Verification Procedure
P0602 : EEPROM and Configuration - Programming Error
1.

Erase the DTC

2.

Wait 3 seconds and check the DTC

3.

IS THERE DTC P0602 ?

YES

a.

Go to step 4

NO

a.

Intermittent failure, system is O.K at this time.

b.

Go to step 4

4.

Erase the DTC and wait 3 seconds

5.

Check the DTC

6.

IS THERE DTC P0602 ?

YES

a.

Replace a known - good ECM if DTC is memorized.

NO

a.

System is O.K

note

Internal fault. There is no inspection of service possible for this diagnostic trouble code. Erase the fault memory and perform test drive. If the fault cannot be cancelled, temporarily install a good ECM and If problem is corrected, replace ECM.

P0603 : EEPROM and Configuration - Memory Error
7.

Erase the DTC

8.

Wait 3 seconds and check the DTC

9.

IS THERE DTC P0603 ?

YES

a.

Go to step 4

NO

a.

Intermittent failure, system is O.K at this time.

b.

Go to step 4

10.

Erase the DTC and wait 3 seconds

11.

Check the DTC

12.

IS THERE DTC P0603 ?

YES

a.

Replace a known - good ECM if DTC is memorized.

NO

a.

System is O.K

note

Internal fault. There is no inspection of service possible for this diagnostic trouble code. Erase the fault memory and perform test drive. If the fault cannot be cancelled, temporarily install a good ECM and If problem is corrected, replace ECM.

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