Component Description
| Component part | Description |
|---|---|
| BCM | BCM controls the starter relay inside IPDM E/R. |
| IPDM E/R | CPU inside IPDM E/R controls the starter control relay. |
| Starter motor | The starter motor plunger closes and the motor is supplied with battery power, which in turn cranks the engine, when the "S" terminal is supplied with electric power. |
| TCM | TCM supplies power to the starter relay and starter control relay inside IPDM E/R when the selector lever is shifted to the P or N position. |
Scheme 1
System Description
- When selector lever is P or N, power is supplied to starter relay and starter control relay by TCM. And BCM and IPDM E/R (CPU) detect selector lever P/N condition by the inputted signal.
- When starter operating condition is satisfied, IPDM E/R turns starter control relay ON by starter control relay control signal.
- When engine cranking condition is satisfied, BCM turns starter relay ON by starter relay control signal.
- Then battery power is supplied to starter motor ("S" terminal) through starter control relay and starter relay. And IPDM E/R (CPU) detect starter relay condition by the inputted signal.
Scheme 2
Scheme 3
Scheme 4
Scheme 5
To test the starting system, use the following special service tool
- GR8-1200 NI Multitasking battery and electrical diagnostic station
Note. Refer to the diagnostic station Instruction Information for proper starting system diagnosis procedures.
