E46 CAN Bus: Difference between revisions

Revision as of 20:11, 2 January 2021

The CAN Bus on BMWs E46 chassis operates at a speed of 500kb/s

Refresh Rate: 10ms

Byte 0 - Bitfield
- Bit 0 - LV_SWI_IGK - Ignition Voltage State (0 = off, 1 = on)
- Bit 1 - LV_F_N_ENG - Crankshaft Sensor State (0 = ok, 1 = error)
- Bit 2 - LV_ACK_TCS - Traction Control State (0 = no ASC1 CAN frame received for 500ms or unplausible data, 1 = ok)
- Bit 3 - LV_ERR_GC - Gear Change Error State (0 = gear change not or partly possible, 1 = gear change possible)
- Bit 4 - SF_TQD
- Bit 5 - SF_TQD
- Bit 6 - Unused
- Bit 7 - LV_F_SUB_TQI - MAF Error State (0 = ok, 1 = error)
Byte 1 - TQI_TQR_CAN
Byte 2 - N_ENG - Engine Speed LSB
Byte 3 - N_ENG - Engine Speed MSB
Byte 4 - TQI_CAN
Byte 5 - TQ_LOSS_CAN
Byte 6 - TQI_MAF_CAN
Byte 7 - Bitfield
- Bit 0 - ERR_AMT_CAN
- Bit 1 - ERR_AMT_CAN

Refresh Rate: 10ms

Byte 0 - Multiplexed Information
- Bit 0 - MUX_INFO
- Bit 1 - MUX_INFO
- Bit 2 - MUX_INFO
- Bit 3 - MUX_INFO
- Bit 4 - MUX_INFO
- Bit 5 - MUX_INFO
- Bit 6 - MUX_CODE
- Bit 7 - MUX_CODE
Byte 1 - TEMP_ENG
Byte 2 - AMP_CAN
Byte 3 - Bitfield
- Bit 0 - LV_SWI_CLU
- Bit 1 - LV_LEVEL_IS
- Bit 2 - LV_ACK_CRU_AD_ECU
- Bit 3 - LV_ERU_CAN
- Bit 4 - STATE_CRU_CAN
- Bit 5 - STATE_MSW_CAN
- Bit 6 - STATE_MSW_CAN
- Bit 7 - STATE_MSW_CAN
Byte 4 - TPS_VIRT_CRU_CAN
Byte 5 - TPS_CAN
Byte 6 - Bitfield
- Bit 0 - LV_BS
- Bit 1 - LV_ERR_BS
- Bit 2 - LV_KD_CAN
- Bit 3 - STATE_CRU_CAN
- Bit 4 - STATE_CRU_CAN
- Bit 5 - STATE_CRU_CAN
- Bit 6 - REQ_SHIFTLOCK
- Bit 7 - REQ_SHIFTLOCK
Byte 7 - Unused

Refresh Rate: 10ms

Byte 0 - Bitfield
- Bit 0 - Diesel: Pre-Glow Active
- Bit 1 - CEL
- Bit 2 - Unused
- Bit 3 - CRU_MAIN_SWI
- Bit 4 - EML
- Bit 5 - Diesel: Boost Control Failure
- Bit 6 - Check Gas Tank Cap
- Bit 7 - Unused
Byte 1 - Fuel Consumption LSB
Byte 2 - Fuel Consumption MSB
Byte 3 - Bitfield
- Bit 0 - Oil Level Error LED M5 Cluster
- Bit 1 - Oil Level Warning LED Every Other Cluster
- Bit 2 - Oil Level Error LED M5 Cluster
- Bit 3 - Coolant Overheating Light
- Bit 4 - M-Cluster Warm-Up LEDs
- Bit 5 - M-Cluster Warm-Up LEDs
- Bit 6 - M-Cluster Warm-Up LEDs
- Bit 7 - Unused
Byte 4 - Oil Temperature
Byte 5 -
Byte 6 - MSS54HP: Oil Level
Byte 7 - Unused

@@ Line 63: / Line 63: @@
 Refresh Rate: 10ms
-*'''Byte 0 - Bitfield''' - Dash Lights
+*'''Byte 0 - Bitfield'''
 **'''Bit 0''' - Diesel: Pre-Glow Active
 **'''Bit 1''' - CEL
@@ Line 74: / Line 74: @@
 *'''Byte 1''' - Fuel Consumption LSB
 *'''Byte 2''' - Fuel Consumption MSB
-*'''Byte 3 - Bitfield''' - Oil And Cooling Lights
+*'''Byte 3 - Bitfield'''
 **'''Bit 0''' - Oil Level Error LED M5 Cluster
 **'''Bit 1''' - Oil Level Warning LED Every Other Cluster