TERMINALS OF ECU
1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) Disconnect the F42 air conditioning amplifier connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F42-21 (B) - F42-14 (GND) |
V - W-B |
Battery power source |
Always |
11 to 14 V |
F42-1 (IG+) - F42-14 (GND) |
L - W-B |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
F42-1 (IG+) - F42-14 (GND) |
L - W-B |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
F42-14 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the F42 air conditioning amplifier connector.
(d) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F42-38 (RDEF) - F42-14 (GND) |
P - W-B |
Rear defogger signal |
Ignition switch ON, rear window defogger switch off |
11 to 14 V |
F42-38 (RDEF) - F42-14 (GND) |
P - W-B |
Rear defogger signal |
Ignition switch ON, rear window defogger switch on |
Below 1 V |
2. CHECK HEATER CONTROL ASSEMBLY
(a) Disconnect the F29 heater control connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F29-4 (IG+) - F29-11 (GND) |
L - W-B |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
F29-4 (IG+) - F29-11 (GND) |
L - W-B |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
F29-11 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT SUSPENSION UPPER ARM ASSEMBLY LH
(a) As shown in the illustration, flip the ball joint stud back and forth
5 times before installing the nut.
(b) Using a torque ...
Initialization
INITIALIZATION
1. INITIALIZE AUTOMATIC RUNNING BOARD SYSTEM
NOTICE:
When a side auto step controller ECU assembly is replaced, the side auto step
controller ECU assembly must be initialized. Functions such as deploying/stowing
and jam protection do not ...