GM Service Manual Online
For 1990-2009 cars only

DTC

Description

Type* Non-European or N. American Emissions

Type* European and N. American Emissions

P0562

DTC P0562

C2

B

P0563

DTC P0563

C2

B

P0601/P1790

DTC P0601 or P1790

C1

A

P0604

DTC P0604

C2

B

P0705

DTC P0705

C2

B

P0712

DTC P0712

C1

A

P0713

DTC P0713

C1

A

P0717

DTC P0717

C1

A

P0722

DTC P0722

C1

A

P0727

DTC P0727

C1

A

P0741

DTC P0741

C2

B

P0742

DTC P0742

C2

B

P0743

DTC P0743

C2

B

P0748

DTC P0748

C1

A

P0751

DTC P0751

C2

B

P0753

DTC P0753

C1

A

P0756

DTC P0756

C2

B

P0758

DTC P0758

C1

A

P0785/P1710

DTC P0785 or P1710

C1

A

P1701/P1792

DTC P1701 or P1792

D

D

P1702

DTC P1702

C1

A

P1781

DTC P1781

C1

A

P1791

DTC P1791

C1

A

U2105

DTC U2105

C1

A

*Description of Type

    • Type A: The TCM will request the illumination of the MIL lamp and store a DTC when the TCM detects a failure on the first ignition cycle.
    • Type C1: The TCM will request the illumination of the hold lamp and store a DTC when the TCM detects a failure on the first ignition cycle.
    • Type B: The TCM will request the illumination of the MIL lamp and store a DTC when the TCM detects failures on 2 consecutive ignition cycles.
    • Type C2: The TCM will request the illumination of the hold lamp and store a DTC when the TCM detects failures on 2 consecutive ignition cycles.
    • Type D: The TCM will not request the illumination of the MIL or hold lamp, but will store a DTC when the TCM detects a failure on the first ignition cycle.