1231 – AL_DCM_ID2_Ignition_Lost
Cause
Corrective action
The ECU transmits an ignition
signal to all DCMs in the system
via a PWM output. The DCM
designated ID2 signals a voltage
of below 4V at the ignition port.
1. Check engine cabling (→ Page 321).
2. Check (plant) supply voltage.
3. Check DCM, replace as necessary.
4. Contact Service.
1232 – AL_DCM_ID2_Internal_Error
Cause
Corrective action
The DCM designated ID2 signals
an internal sensor error.
1. Check DCM, replace as necessary.
2. Contact Service.
1233 – AL_HI1_T_DCM_ID3
Cause
Corrective action
The component temperature of
the DCM designated ID3 has
violated the maximum admissible
temperature.
1. Check ambient temperature at DCM.
2. Contact Service.
1235 – AL_DCM_ID3_Ignition_Lost
Cause
Corrective action
The ECU transmits an ignition
signal to all DCMs in the system
via a PWM output. The DCM
designated ID3 signals a voltage
of below 4V at the ignition port.
1. Check engine cabling (→ Page 321).
2. Check (plant) supply voltage.
3. Check DCM, replace as necessary.
4. Contact Service.
1236 – AL_DCM_ID3_Internal_Error
Cause
Corrective action
The DCM designated ID3 signals
an internal sensor error.
1. Check DCM, replace as necessary.
2. Contact Service.
1237 – AL_HI1_T_DCM_ID4
Cause
Corrective action
The component temperature of
the DCM designated ID4 has
violated the maximum admissible
temperature.
1. Check ambient temperature at DCM.
2. Contact Service.
1239 – AL_DCM_ID4_Ignition_Lost
Cause
Corrective action
The ECU transmits an ignition
signal to all DCMs in the system
via a PWM output. The DCM
designated ID4 signals a voltage
of below 4V at the ignition port.
1. Check engine cabling (→ Page 321).
2. Check (plant) supply voltage.
3. Check DCM, replace as necessary.
4. Contact Service.
160 | Troubleshooting | MS15065/01E 2019-01
TIM-ID: 0000078552 - 003
