Diagnostic Tests: Notes

DTC that affects UTD operation can be stored in different systems. Refer to DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS table for UTD related DTCs. To access or clear DTCs, use scan tool or Instrument Panel Cluster clearing DTC feature.

DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS

DTC

Definition

B2236 ⁽¹⁾

Left Door Lock Switch Fault

B2237 ⁽²⁾

Right Door Lock Switch Fault

B2252 ⁽¹⁾

Key Cylinder Switch Fault

B2253 ⁽²⁾

Key Cylinder Switch Fault

B2587 ⁽³⁾

Column Lock/Unlock Drive "A"

B2588 ⁽³⁾

Column Lock/Unlock Drive "A"

B2592 ⁽³⁾

Column Lock/Unlock Drive "B"

B2593 ⁽³⁾

Column Lock/Unlock Drive "B"

B2721 ⁽³⁾

PASS-Key(R) Detection Circuit (Out Of Range)

B2722 ⁽³⁾

PASS-Key(R) Detection Circuit (Short To Ground)

B2723 ⁽³⁾

PASS-Key(R) Detection Circuit (Open/Short To Voltage)

B2735 ⁽³⁾

PASS-Key(R) Programming Mode Active

U1016 ⁽³⁾

PCM Communication Loss

P1626 ⁽⁴⁾

Theft Deterrent System Fuel Enable Circuit

P1630 ⁽⁴⁾

Theft Deterrent In Learn Mode

P1630 ⁽⁴⁾

Theft Deterrent Password Incorrect

⁽¹⁾	Left Door Control Module (LDCM) code. See appropriate DTC test.

⁽²⁾	Right Door Control Module (RDCM) code. See appropriate DTC test.

⁽³⁾	See BODY CONTROL MODULES - CORVETTE article for diagnosis and repair.

⁽⁴⁾	See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.