TERMINALS OF ECU
1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) Disconnect the D47 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D47-1 (IG+) - D47-14 (GND) |
Y - W |
Power source (IG) |
Ignition switch ON |
11 to 14 V |
D47-1 (IG+) - D47-14 (GND) |
Y - W |
Power source (IG) |
Ignition switch off |
Below 1 V |
D47-21 (B) - D47-14 (GND) |
V - W |
Power source (Back-up) |
Always |
11 to 14 V |
D47-14 (GND) - Body ground |
W - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the D47 air conditioning amplifier assembly connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D47-18 (D) - D47-14 (GND) |
G - W |
Rear defogger signal |
Ignition switch ON, rear window defogger switch off |
11 to 14 V |
D47-18 (D) - D47-14 (GND) |
G - W |
Rear defogger signal |
Ignition switch ON, rear window defogger switch on |
Below 1 V |
D47-37 (LIN1) - D47-14 (GND) |
SB - W |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the air conditioning amplifier assembly may have a malfunction.
2. CHECK AIR CONDITIONING CONTROL ASSEMBLY
(a) Disconnect the E3 air conditioning control assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
E3-4 (IG+) - E3-5 (GND) |
GR - W |
Power source (IG) |
Ignition switch ON |
11 to 14 V |
E3-4 (IG+) - E3-5 (GND) |
GR - W |
Power source (IG) |
Ignition switch off |
Below 1 V |
E3-5 (GND) - Body ground |
W - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the E3 air conditioning control assembly connector.
(d) Check for pulses according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
E3-2 (LIN1) - E3-5 (GND) |
SB - W |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the air conditioning control assembly may have a malfunction.
A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION
This DTC is stored when items controlled by the air conditioning amplifier assembly
cannot be customized via the navigation system vehicle customization screen.
HINT:
The air conditioning amplifier assembly controls the air conditioning system ...
System Description
SYSTEM DESCRIPTION
1. OUTLINE OF THE COMBINATION METER ASSEMBLY
(a) Meter or Gauge
Item
Detail
Speedometer
Indicates the vehicle speed based on a signal received from the skid
control ECU. (CAN (CAN No ...
Vehicle load limits
Vehicle load limits include total load capacity, seating capacity, Trailer
Weight Rating (TWR) and cargo capacity.
- Total load capacity (Vehicle capacity weight):
Total load capacity means the combined weight of occupants, cargo and luggage.
&nbs ...