WITH INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-50, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Terminal No. | Signal name | Fuse No. |
161 | BCM power supply | 7 (10A) |
Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT
BCM | Ground | Voltage (Approx.) | |
Connector | Terminal | ||
M20 | 161 | — | Battery voltage |
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 and ground.
BCM | Ground | Continuity | |
Connector | Terminal | ||
M20 | 170 | — | Yes |
171 |
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connectors.
WITHOUT INTELLIGENT KEY SYSTEM
WITHOUT INTELLIGENT KEY SYSTEM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-110, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Terminal No. | Signal name | Fuse No. |
161 | BCM power supply | 7 (10A) |
Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT
BCM | Ground | Voltage (Approx.) | |
Connector | Terminal | ||
M20 | 161 | — | Battery voltage |
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 and ground.
BCM | Ground | Continuity | |
Connector | Terminal | ||
M20 | 170 | — | Yes |
171 |
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Component parts
Component Parts Location
ENGINE ROOM COMPARTMENT
No.
Component
Function
1
IPDM E/R
IPDM E/R control the internal relays and the actuators.
Refer to PCS-5, "RELAY CONTROL SYSTEM : System
Description".
When CAN comm ...
P0643 sensor power supply
Description
ECM supplies a voltage of 5 V to some of the sensors systematically divided
into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a
malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited ...
ECU diagnosis information
FRONT AIR CONTROL
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one by one
based on the following priority
chart.
Priority
Detected items (DTC)
1
...