1230 code(s) in this category. Page 3 of 52. Select one to see the detailed diagnosis.
Red (U)
Bus C high-side line voltage below expected range. A communication loss with this module breaks any function r…
The plus line of vehicle bus E (often a secondary safety or chassis CAN) is open. Loss of this segment usually…
Bus C low-side line open. A communication loss with this module breaks any function relying on its data — diag…
Bus C low-side line voltage below expected range. A communication loss with this module breaks any function re…
Bus C low-side line voltage above expected range. A communication loss with this module breaks any function re…
Bus C lines shorted together. A communication loss with this module breaks any function relying on its data — …
Generic fault on bus D (fourth bus, often dedicated subsystem like infotainment or driver assistance).…
Bus D error counters or message rate out of spec. A communication loss with this module breaks any function re…
Bus D high-side line open. A communication loss with this module breaks any function relying on its data — dia…
Bus D high-side line voltage below expected range. A communication loss with this module breaks any function r…
Bus D high-side line voltage above expected range. A communication loss with this module breaks any function r…
The plus line of vehicle bus F is open. Used by some vehicles for body or infotainment subnets; loss disables …
Bus D low-side line voltage below expected range. A communication loss with this module breaks any function re…
Bus D low-side line voltage above expected range. A communication loss with this module breaks any function re…
Bus D lines shorted together. A communication loss with this module breaks any function relying on its data — …
Generic fault on bus E (fifth bus). A communication loss with this module breaks any function relying on its d…
Bus E error counters or message rate out of spec. A communication loss with this module breaks any function re…
Bus E high-side line open. A communication loss with this module breaks any function relying on its data — dia…
Bus E high-side line voltage below expected range. A communication loss with this module breaks any function r…
Bus E high-side line voltage above expected range. A communication loss with this module breaks any function r…
Bus E low-side line open. A communication loss with this module breaks any function relying on its data — diag…
The secondary communication bus (Bus B, often a chassis or comfort sub-bus) shows reduced performance — high e…
The CAN controller for bus A has shut its plus driver after exceeding the SAE J2284 / ISO 11898 transmit error…
The CAN controller for bus A has gone bus-off on the minus side. Common after a CAN-L short or a faulty transc…