Gauges DTCS

GAUGES DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC	Description
DTC B1152	Gauge Control Module Internal (EEPROM) Error
DTC B1155; B1156	Gauge Control Module Lost Communication with Combination Switch Control Unit (HLSW Message); Gauge Control Module Lost Communication with Combination Switch Control Unit (WIPSW Message)
DTC B1157; B1180	Gauge Control Module Lost Communication with MICU (MICU Message); Gauge Control Module Lost Communication with MICU (AUTOLT Message)
DTC B1158	Gauge Control Module Lost Communication with Relay Control Module (RM Message)
DTC B1161	Gauge Control Module Lost Communication with Keyless Access Control Unit (REMOTE ID Message)
DTC B1166	Gauge Control Module Lost Communication with Adaptive Front Lighting Control Unit (AFS Message)
DTC B1168; B1169; B1178	Gauge Control Module Lost Communication with PCM (ENG Message); Gauge Control Module Lost Communication with the PCM (A/T Message); F-CAN Communication Error
DTC B1170	Gauge Control Module Lost Communication with VSA Modulator-Control Unit (VSA Message)
DTC B1171	Gauge Control Module Lost Communication with Adaptive Cruise Control Unit (ACC Message)
DTC B1173	Gauge Control Module Lost Communication with TPMS Control Unit (TPMS Message)
DTC B1175	Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Open
DTC B1176	Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Short
DTC B1177	Battery Voltage Abnormal
DTC B1181; B1182	Gauge Control Module Lost Communication with Driver's MPCS Unit (DOORSW Message); Gauge Control Module Lost Communication with Driver's MPCS Unit (DRLOKSW Message)

Check Out These VSA Troubleshooting Tips (B07080B)

Publication date: 2007-08-01
Reference number: B07080B

CHECK OUT THESE VSA TROUBLESHOOTING TIPS

TECHNICAL SERVICE BULLETIN

Reference Number(s): B07080B, Date of Issue: August 01, 2007

ACURA:	'04-08 MDXs; '07-08 RDXs; '05-08 RLs; '02-06 RSXs; '04-08 TLs; and '04-08 TSXs
CURRENTLY APPLIES TO:	'04-08 MDXs; '07-08 RDXs; '05-08 RLs; '02-06 RSXs; '04-08 TLs; and '04-08 TSXs

SERVICE INFORMATION

Vexed by a VSA troubleshooting problem? Here's a handy chart that can help you out. Keep in mind, this is a generic chart, so the DTC ID numbers and descriptions may vary slightly with model applicability. If you've still got the problem after following these troubleshooting tips, then refer to the applicable S/M or go into ISIS for more detailed info.

DTC DESCRIPTION CHART

DTC	Description	Symptom	Probable Cause
U0073 or U0028 with any other DTCs	F-CAN malfunction (Bus-off)	MIL is on No F-CAN communication HDS won't communicate on some models Tachometer, speedometer, and temperature gauge don't work Multiple warning indicators are on Body electrical DTCs B1168, B1169, B1170, and B1178	CAN-H wire shorted to ground CAN-H wire shorted to power Bad F-CAN-related control unit Poor power or ground to an F-CAN-related control unit
U0122 only. No other DTCs.	F-CAN malfunction (PCM-VSA)	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground
U0122 with VSA 86	F-CAN malfunction (PCM-VSA F-CAN communication	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground Open or poor connection on F-CAN-H or F-CAN-L wires
25	Yaw rate sensor	MIL is off VSA indicator is on VSA activation indicator is on	S-GND, YAW, or SVCC open circuit Yaw signal wire shorted to ground Bad yaw rate sensor or cluster sensor
26	Lateral acceleration sensor	MIL is off VSA indicator is on VSA activation indicator is on	S-GND, GLAT, or SVCC open circuit GLAT signal wire shorted to ground Bad yaw rate-lateral acceleration (cluster) sensor
27	Steering angle sensor	MIL is off VSA indicator is on VSA activation indicator is on	Open or poor connection on STRA, STRB, or STRD (STRZ) signal wire Short to ground on STRA, STRB, or STRD (STRZ) signal wire Open on S-GND wire Bad steering angle sensor
28	Longitudinal acceleration sensor	MIL is off VSA indicator is on VSA activation indicator is on	Open or poor connection on GLONG signal wire Short to ground on GLONG signal wire Open on S-GND wire
51	Motor lock	MIL is off VSA indicator is on VSA activation indicator is on	+B-MR open or poor connection Poor or no VSA ground
53	Motor stuck ON	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no VSA MOTOR ground
64	Sensor power voltage	MIL is off VSA indicator is on VSA activation indicator is on	SVCC short to ground or open
68	Brake pedal position switch	MIL is off VSA indicator is on VSA activation indicator is on	If the VSA modulator-control unit sees brake pressure without a brake pedal position switch signal, check for an open in the brake light circuit or a misadjusted brake pedal position switch. If the VSA modulator-control unit sees the brake pedal position switch is on without brake pressure, check for a short to power in the brake pedal position switch circuit or a misadjusted switch.
86	F-CAN communication	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground Open or poor connection on F-CAN-H or F-CAN-L wires

Check Out These VSA Troubleshooting Tips (B07080B)

Publication date: 2007-08-01
Reference number: B07080B

CHECK OUT THESE VSA TROUBLESHOOTING TIPS

TECHNICAL SERVICE BULLETIN

Reference Number(s): B07080B, Date of Issue: August 01, 2007

ACURA:	'04-08 MDXs; '07-08 RDXs; '05-08 RLs; '02-06 RSXs; '04-08 TLs; and '04-08 TSXs
CURRENTLY APPLIES TO:	'04-08 MDXs; '07-08 RDXs; '05-08 RLs; '02-06 RSXs; '04-08 TLs; and '04-08 TSXs

SERVICE INFORMATION

Vexed by a VSA troubleshooting problem? Here's a handy chart that can help you out. Keep in mind, this is a generic chart, so the DTC ID numbers and descriptions may vary slightly with model applicability. If you've still got the problem after following these troubleshooting tips, then refer to the applicable S/M or go into ISIS for more detailed info.

DTC DESCRIPTION CHART

DTC	Description	Symptom	Probable Cause
U0073 or U0028 with any other DTCs	F-CAN malfunction (Bus-off)	MIL is on No F-CAN communication HDS won't communicate on some models Tachometer, speedometer, and temperature gauge don't work Multiple warning indicators are on Body electrical DTCs B1168, B1169, B1170, and B1178	CAN-H wire shorted to ground CAN-H wire shorted to power Bad F-CAN-related control unit Poor power or ground to an F-CAN-related control unit
U0122 only. No other DTCs.	F-CAN malfunction (PCM-VSA)	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground
U0122 with VSA 86	F-CAN malfunction (PCM-VSA F-CAN communication	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground Open or poor connection on F-CAN-H or F-CAN-L wires
25	Yaw rate sensor	MIL is off VSA indicator is on VSA activation indicator is on	S-GND, YAW, or SVCC open circuit Yaw signal wire shorted to ground Bad yaw rate sensor or cluster sensor
26	Lateral acceleration sensor	MIL is off VSA indicator is on VSA activation indicator is on	S-GND, GLAT, or SVCC open circuit GLAT signal wire shorted to ground Bad yaw rate-lateral acceleration (cluster) sensor
27	Steering angle sensor	MIL is off VSA indicator is on VSA activation indicator is on	Open or poor connection on STRA, STRB, or STRD (STRZ) signal wire Short to ground on STRA, STRB, or STRD (STRZ) signal wire Open on S-GND wire Bad steering angle sensor
28	Longitudinal acceleration sensor	MIL is off VSA indicator is on VSA activation indicator is on	Open or poor connection on GLONG signal wire Short to ground on GLONG signal wire Open on S-GND wire
51	Motor lock	MIL is off VSA indicator is on VSA activation indicator is on	+B-MR open or poor connection Poor or no VSA ground
53	Motor stuck ON	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no VSA MOTOR ground
64	Sensor power voltage	MIL is off VSA indicator is on VSA activation indicator is on	SVCC short to ground or open
68	Brake pedal position switch	MIL is off VSA indicator is on VSA activation indicator is on	If the VSA modulator-control unit sees brake pressure without a brake pedal position switch signal, check for an open in the brake light circuit or a misadjusted brake pedal position switch. If the VSA modulator-control unit sees the brake pedal position switch is on without brake pressure, check for a short to power in the brake pedal position switch circuit or a misadjusted switch.
86	F-CAN communication	MIL is off VSA indicator is on VSA activation indicator is on	Poor or no +B FSR voltage Poor or no Ignition 1 voltage Poor or no VSA ground Open or poor connection on F-CAN-H or F-CAN-L wires

B1168

Gauges DTCS

Check Out These VSA Troubleshooting Tips (B07080B)

CHECK OUT THESE VSA TROUBLESHOOTING TIPS

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

Check Out These VSA Troubleshooting Tips (B07080B)

CHECK OUT THESE VSA TROUBLESHOOTING TIPS

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

Supporting Diagrams & Locations

Related Procedures