APP_w138 — L Repeat Cam Init Fault

Full alert identifier: APP_w138_lRepeatCamInitFault

Alert description

When the Autopilot electronic control unit (ECU) boots, the left repeater camera is unable to initialize.

Potential impact

Autopilot features are unavailable or limited. Left repeater camera feed is blank on the touchscreen, in dashcam recordings, and in Sentry mode recordings.

Set condition

When the Autopilot ECU boots, communication cannot be established with the left repeater camera.

Clear condition

Communication issue is rectified with the left repeater camera, ECU is rebooted, and camera is initialized.

Signals to check

These diagnostic fields are associated with APP_w138. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
L Repeat Cam Deser Fault `APP_sw138_lRepeatCamDeserFault` 0 NO I2C FAULT 1 I2C BUS FAULT 2 I2C SLAVE ADDR NACK 3 I2C DATA NACK 4 I2C UNKNOWN IOCTL ERR	—
L Repeat Cam I 2 Cbus Fault `APP_sw138_lRepeatCamI2CbusFault`	—
L Repeat Cam Sensor Fault `APP_sw138_lRepeatCamSensorFault` 0 NO I2C FAULT 1 I2C BUS FAULT 2 I2C SLAVE ADDR NACK 3 I2C DATA NACK 4 I2C UNKNOWN IOCTL ERR	—
L Repeat Cam Ser Fault `APP_sw138_lRepeatCamSerFault` 0 NO I2C FAULT 1 I2C BUS FAULT 2 I2C SLAVE ADDR NACK 3 I2C DATA NACK 4 I2C UNKNOWN IOCTL ERR	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APP_w138.