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Diagnostic Trouble Code Definitions

BCM DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC

Description

B110 ⁽¹⁾

Outside Temperature Sensor Circuit

B111 ⁽¹⁾

A/C High Side Temperature Sensor

B112 ⁽¹⁾

A/C Low Side Temperature Sensor

B113 ⁽¹⁾

In-Car Temperature Sensor Circuit

B115 ⁽¹⁾

Sunload Sensor Circuit

Twilight Photocell Circuit

Twilight Delay Switch Pot Circuit

Twilight Delay & Panel Dimming

B122 ⁽²⁾

Panel Dimming Switch

Vehicle Speed Sensor Circuit

B127 ⁽²⁾

PRND321 Sensor

B132 ⁽²⁾

Oil Pressure Sensor Circuit

EO47 , B333 B334 , B335 , B336 Or B337

Multiple Intermittent Data Codes

Loss Of DERM Data

Loss Of ECM Data

Loss Of CCDIC Data

Loss Of IPC Data

Loss Of HVAC Programmer Data

B410 ⁽³⁾

Charging System Problem

B411 Or B412 ⁽³⁾

Battery Voltage Too Low Or Too High

Relay Circuits

Relay Circuits

B440 ⁽¹⁾

HVAC - Air Mix Door Circuit

B441 ⁽¹⁾

Cooling Fans Problem

B446, B447 Or B448 ⁽¹⁾

Refrigerant System Problem

B449 ⁽¹⁾

HVAC - High Side Temperature Too High

B450 ⁽¹⁾

HVAC - Coolant Temperature To High

B480 ⁽⁴⁾

Anti-Lock/TCS Data Problem

B483 ⁽⁴⁾

Anti-Lock/TCS Fault

BCM Keep Alive Memory Error

Odometer EEPROM Error

⁽¹⁾	Perform appropriate test in AUTOMATIC A/C-HEATER SYSTEMS -- ALLANTE article.

⁽²⁾	Perform appropriate test in INSTRUMENT PANELS -- ALLANTE article.

⁽³⁾	Perform appropriate test in GENERATORS & REGULATORS -- ALLANTE in STARTING & CHARGING SYSTEM article.

⁽⁴⁾	Perform appropriate test in ANTI-LOCK & TRACTION CONTROL, BOSCH III article.

LIGHTING DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC	Description	Perform Test
L010	Redundant Taillamp Relay	DTC L010
L011	Redundant Headlamp Relay	DTC L011
L110	LCP Communication Failure	DTC L110
L202	OSM No. 2 Communication Failure	DTC L202
L203	OSM No. 3 Communication Failure	DTC L203
L204	OSM No. 4 Communication Failure	DTC L204
L205	OSM No. 5 Communication Failure	DTC L205
206	OSM No. 6 Communication Failure	DTC L206
L207	OSM No. 7 Communication Failure	DTC L207
L208	OSM No. 13 Communication Failure	DTC L208
L209	OSM No. 9 Communication Failure	DTC L209
L210	OSM No. 10 Communication Failure	DTC L210
L302	OSM No. 2 Output Failure	ALL 300 "L" SERIES DTCS
L303	OSM No. 3 Output Failure	ALL 300 "L" SERIES DTCS
L304	OSM No. 4 Output Failure	ALL 300 "L" SERIES DTCS
L305	OSM No. 5 Output Failure	ALL 300 "L" SERIES DTCS
L306	OSM No. 6 Output Failure	ALL 300 "L" SERIES DTCS
L307	OSM No. 7 Output Failure	ALL 300 "L" SERIES DTCS
L308	OSM No. 13 Output Failure	ALL 300 "L" SERIES DTCS
L309	OSM No. 9 Output Failure	ALL 300 "L" SERIES DTCS
L310	OSM No. 10 Output Failure	ALL 300 "L" SERIES DTCS
L411	Lighting System Low Voltage Warning	DTC L411