12V Battery Charge Warning Light
DESIGN/PURPOSE
Charge warning light warns the driver for the unexpected power generation.
BULB CHECK
For 2 seconds after the ignition switch is turned ON.
SYNCHRONIZATION WITH MASTER WARNING LIGHT
Not applicable
OPERATION AT COMBINATION METER CAN COMMUNICATION CUT-OFF OR UNUSUAL SIGNAL
For actions on CAN communications blackout in the combination meter, refer to
Fail-Safe
.
SIGNAL PATH
- ECM transmits battery warning request signal (ECM) to combination meter via CAN communication when the operation of alternator is unexpected.
- IPDM E/R transmits battery warning request signal (IPDM E/R) to combination meter via CAN communication when excessive voltage is detected on battery positive terminal.
- Combination meter indicates charge warning light judged with battery warning request signal received from ECM or IPDM E/R.
LIGHTING CONDITION
When any of the following symptoms occur while alternator is operating:
- Communication between alternator and ECM is malfunctioning.
- Excessive voltage is produced.
- No voltage is produced.
- Excessive voltage is detected on battery positive terminal
SHUTOFF CONDITION
When any of the condition listed below is satisfied:
- Ignition switch is OFF.
- The power generation of generator is normal.
![[Previous]](../../../buttons/fprev.png)
![[Next]](../../../buttons/fnext.png)
)
)