Scan Tool Diagnostics

A scan tool is used to retrieve and clear DTCs. The scan tool also has several features that can be used to help locate an intermittent condition. When scan tool is used for system tests, it will display values actually seen or commanded by various systems (i.e., BCM, PCM, instrument cluster, EBCM or SDM). This will usually include the following types of information:

Analog Data Input

Displays analog input seen by system.

Inputs/Outputs

Displays digital values as seen by system, and provides indication of whether input or output has cycled.

Special Functions (Output Controls)

Allows for outputs of system to be set at a desired value (ON or OFF).

Clear Codes

Will erase DTCs for system currently selected (if problem still exists in system, DTC may immediately reset).

DIAGNOSTIC TROUBLE CODE DEFINITIONS ⁽¹⁾

DTC ⁽²⁾

Description

B0016 ⁽³⁾

Right Front Frontal Deployment Loop Resistance Low

B0017 ⁽³⁾

Right Front Frontal Deployment Loop Open

B0018 ⁽³⁾

Right Front Frontal Deployment Loop Short To Ground/Voltage Out Of Range

B0022 ⁽³⁾

Left Front Frontal Deployment Loop Resistance Low

B0024 ⁽³⁾

Left Front Frontal Deployment Loop Short To Ground/Voltage Out Of Range

B0026 ⁽³⁾

Left Front Frontal Deployment Loop Open

B0035 ⁽³⁾

ADS Closed/Short To Ground

B0036 ⁽³⁾

ADS Open/Missing/Short To Battery

B0051 ⁽³⁾

Deployment Commanded

B0053 ⁽³⁾

Deployment Commanded With Loop Malfunctions Present

B1000 ⁽³⁾

Module Malfunction

B1367 ⁽⁴⁾

IPC Ignition 0 Circuit Low

B1397

Device Voltage Reference Out # 1 Circuit Low

B1398

Device Voltage Reference Out # 1 Circuit High

B1477

RAP Circuit Low

B1478

RAP Circuit High

B1480

Battery Rundown Protection Circuit Malfunction

B2575 ⁽⁵⁾

Headlight Control Circuit Malfunction

B2577 ⁽⁵⁾

ALC Headlight Control Circuit Low

B2585 ⁽⁶⁾

Park Light Control Circuit Malfunction

B2613 ⁽⁷⁾

Passenger Compartment Dimming 1 Circuit High

B2617 ⁽⁷⁾

Passenger Compartment Dimming 2 Circuit Low

B2618 ⁽⁷⁾

Passenger Compartment Dimming 2 Circuit High

B2647 ⁽⁵⁾

Ambient Light Sensor Short To Ground/Open

B2648 ⁽⁵⁾

Ambient Light Sensor Short To Battery

B2722 ⁽⁸⁾

Transmission Preference Switch Circuit Low

B2752 ⁽⁹⁾

Horn Relay Coil Circuit Low

B2947 ⁽¹⁰⁾

Security System Sensor Power Circuit Low

B2948 ⁽¹⁰⁾

Security System Sensor Power Circuit High

B2957 ⁽¹⁰⁾

Security System Sensor Data Circuit Low

B2958 ⁽¹⁰⁾

Security System Sensor Data Circuit High

B2960 ⁽¹⁰⁾

Security System Sensor Data Incorrect But Valid

B2961 ⁽¹⁰⁾

Key In Ignition Circuit Malfunction

B3031 ⁽¹⁰⁾

Security System Controller In Learn Mode

B3033 ⁽¹⁰⁾

Security System Indicates Tamper

B3102 ⁽¹¹⁾

Keyless Entry Data Link Circuit Low

B3137 ⁽¹²⁾

All Door Lock Circuit Low

B3138 ⁽¹²⁾

All Door Lock Circuit High

B3147 ⁽¹²⁾

Right Front Unlock Switch Circuit Low

B3148 ⁽¹²⁾

Right Front Unlock Switch Circuit High

U1000 & U1088

CLASS 2 COMMUNICATION MALFUNCTION

U1001-U1097:

LOSS OF XXX COMMUNICATIONS

U1300

Class 2 Serial Data Link Low

U1301

Class 2 Serial Data Link High

⁽¹⁾	See DIAGNOSTIC TESTS for test and repair procedures.

⁽²⁾	For DTCs not listed, repair appropriate system as necessary.

⁽³⁾	For information on air bag DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see lemon-25(R) AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.

⁽⁴⁾	See ANALOG INSTRUMENT PANELS - ASTRO & SAFARI article.

⁽⁵⁾	See appropriate HEADLIGHT SYSTEMS & DAYTIME RUNNING LIGHTS article.

⁽⁶⁾	See appropriate EXTERIOR LIGHTS article.

⁽⁷⁾	See appropriate ILLUMINATION/INTERIOR LIGHTS article.

⁽⁸⁾	Transfer case DTC.

⁽⁹⁾	See STEERING COLUMN SWITCHES - TRUCKS - EXCEPT TRACKER article.

⁽¹⁰⁾	See ANTI-THEFT SYSTEMS - ASTRO & SAFARI article.

⁽¹¹⁾	See REMOTE KEYLESS ENTRY SYSTEMS - ASTRO & SAFARI article.

⁽¹²⁾	See POWER DOOR LOCKS - ASTRO & SAFARI article.