DTC P16B9 (07): Mode Signal Circuit 2 Problem: General Description
The MCM (motor control module) determines the motor assist control mode according to the mode signals (Mode signal 1, Mode signal 2) from the engine control module (ECM). The motor assist control mode is determined by the combination of Mode signal 1 (pulse width modulation (PWM) duty) and Mode signal 2 (High/Low voltage level). When Mode signal 2 is malfunctioning, it is contrary to the state in the table and stays High or Low. Therefore, the motor assist control mode is not determined if Mode signal 2 is malfunctioning.
If the combination of Mode signal 1 and Mode signal 2 differs from one specified for a set time, a malfunction in Mode signal 2 is detected and a DTC is stored.
MONITOR DESCRIPTION CHART
| Execution | Continuous |
| Sequence | Motor current U/V/W phase signal circuit, Battery module, Battery cell, IMA system, Bypass contactor, Motor commutation sensor, Battery cell temperature signal circuit, Detection signal circuit, Battery current circuit, Motor current signal circuit, MPI, MDM, BCM, MCM |
| Duration | 2 seconds or more |
| DTC Type | One drive cycle, MIL ON, IMA system indicator ON |
ENABLE CONDITIONS CHART
| Condition | Minimum | Maximum |
|---|---|---|
| MCM power-supply voltage | 10.5 V | - |
| No active DTCs | MPI, Motor current sensor, Battery module, Battery module temperature sensor, MCM, MDM, Motor operation system, Bypass contactor, Motor commutation sensor, MDM voltage sensor, Battery current sensor, MPI module current sensor, MDM current sensor, BCM, Mode signal circuit 1, Mode signal circuit 2 | |
| Other | During of motor assist during acceleration, or during regeneration during deceleration | |