DI_a206 — Vdc Rcm Vertical

Full alert identifier: DI_a206_vdcRcmVertical

Alert description

Drive Inverter Warning: Vertical acceleration or yaw rate error

Potential impact

Traction control and stability control may be unavailable due to this error. The vehicle should be driven with extreme caution if these features are unavailable.

Set condition

The drive inverter is not receiving vertical acceleration and/or yaw rate from the Restraint Control Module (RCM) properly, or their values are considered implausible. Alert log signal data for verticalAccel and yawRate should provide more information on the specific cause (frozen signal, signal rate limit exceeded, or CAN issue). Frozen signals or rate limits require further investigation. CAN issues should also be diagnosed and can be caused by the RCM not being on the PARTY CAN bus, or by general CAN bus error frames or shorts.

Clear condition

If this alert is set due to rate or freeze check, it will clear on the next drive cycle. If the alert is set due to CAN issues it will clear on the drive cycle after the CAN issues have been resolved.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Vertical Accel Curr Val `DI_a206_verticalAccelCurrVal`	m/s^2
Vertical Accel Last Val `DI_a206_verticalAccelLastVal`	m/s^2
Yaw Rate Curr Val `DI_a206_yawRateCurrVal`	rad/s
Yaw Rate Last Val `DI_a206_yawRateLastVal`	rad/s

Signal	Unit
Vertical Accel `DI_a206_verticalAccel` 0 VALID 1 RANGE 2 FREEZE 3 RATE 4 QF 5 CAN 6 QF VALIDITY 7 TEMP QF INVALID	—
Yaw Rate `DI_a206_yawRate` 0 VALID 1 RANGE 2 FREEZE 3 RATE 4 QF 5 CAN 6 QF VALIDITY 7 TEMP QF INVALID	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DI_a206.