TERMINALS OF ECU
1. CHECK POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) (w/ POWER BACK DOOR SYSTEM)
(a) Disconnect the L20 power back door ECU connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
L20-12 (B) - Body ground |
LG - Body ground |
Battery power supply |
Always |
11 to 14 V |
L20-10 (ECUB) - Body ground |
P - Body ground |
Battery power supply |
Always |
11 to 14 V |
L20-8 (IG) - Body ground |
SB - Body ground |
IG power supply |
Ignition switch ON |
11 to 14 V |
L20-8 (IG) - Body ground |
SB - Body ground |
IG power supply |
Ignition switch off |
Below 1 V |
L20-11 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the L20 power back door ECU connector.
(d) Initialize the power back door system (See page ).
(e) Measure the voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
L20-2 (DC+) - L20-1 (DC-) |
L - G |
Back door lock motor circuit |
Back door lock motor operating |
11 to 14 V |
L20-2 (DC+) - L20-1 (DC-) |
L - G |
Back door lock motor circuit |
Back door lock motor not operating |
Below 1 V |
L20-20 (FUL) - Body ground |
GR - Body ground |
Back door courtesy switch circuit |
Back door closed |
11 to 14 V |
L20-20 (FUL) - Body ground |
GR - Body ground |
Back door courtesy switch circuit |
Back door open |
Below 1 V |
L20-22 (HAF) - Body ground |
LG - Body ground |
Back door lock half-latch switch signal circuit |
Back door open → Back door closer operates → Back door closed |
Below 1 V → 11 to 14 V → Below 1 V |
L20-24 (POS) - Body ground |
P - Body ground |
Back door lock position switch signal circuit |
Back door open → Back door closer operates → Back door closed |
Below 1 V → 11 to 14 V → Below 1 V |
If the result is not as specified, the ECU may have a malfunction.
2. BACK DOOR CLOSER ECU (MULTIPLEX NETWORK DOOR ECU) (w/o POWER BACK DOOR SYSTEM)
(a) Disconnect the L21 back door closer ECU connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
L21-4 (B) - Body ground |
LG - Body ground |
Battery power supply |
Always |
11 to 14 V |
L21-16 (ECUB) - Body ground |
P - Body ground |
Battery power supply |
Always |
11 to 14 V |
L21-15 (IG) - Body ground |
SB - Body ground |
IG power supply |
Ignition switch ON |
11 to 14 V |
L21-15 (IG) - Body ground |
SB - Body ground |
IG power supply |
Ignition switch off |
Below 1 V |
L21-3 (GND) - Body ground |
W-B - 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 L21 back door closer ECU connector.
(d) Measure the voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
L21-2 (DC+) - L21-1 (DC-) |
L - G |
Back door lock motor circuit |
Back door lock motor operating |
11 to 14 V |
L21-2 (DC+) - L21-1 (DC-) |
L - G |
Back door lock motor circuit |
Back door lock motor not operating |
Below 1 V |
L21-6 (FUL) - Body ground |
GR - Body ground |
Back door courtesy switch circuit |
Back door closed |
11 to 14 V |
L21-6 (FUL) - Body ground |
GR - Body ground |
Back door courtesy switch circuit |
Back door open |
Below 1 V |
L21-5 (HAF) - Body ground |
LG - Body ground |
Back door lock half-latch switch signal circuit |
Back door open → Back door closer operates → Back door closed |
Below 1 V → 11 to 14 V → Below 1 V |
L21-7 (POS) - Body ground |
P - Body ground |
Back door lock position switch signal circuit |
Back door open → Back door closer operates → Back door closed |
Below 1 V → 11 to 14 V → Below 1 V |
If the result is not as specified, the ECU may have a malfunction.
3. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the D49 and 2F connectors.
(b) Measure the resistance according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D49-2 (BDSU) - Body ground |
GR - Body ground |
Back door opener switch signal circuit |
Back door opener switch on |
Below 1 Ω |
D49-2 (BDSU) - Body ground |
GR - Body ground |
Back door opener switch signal circuit |
Back door opener switch off |
10 kΩ or higher |
2F-16 (GND1) - 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.
(c) Reconnect the D49 and 2F connectors.
(d) Measure the voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D49-2 (BDSU) - Body ground |
GR - Body ground |
Back door opener switch signal circuit |
Back door opener switch off |
Pulse generation |
D49-2 (BDSU) - Body ground |
GR - Body ground |
Back door opener switch signal circuit |
Back door opener switch on |
Below 1 V |
If the result is not as specified, the ECU may have a malfunction.
Stereo Component Amplifier Disconnected (B15D3)
DESCRIPTION
The navigation receiver assembly and stereo component amplifier assembly are
connected via AVC-LAN communication.
This DTC is stored when an AVC-LAN communication error occurs between the navigation
receiver assembly and stereo component ampl ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL HEATED OXYGEN SENSOR
2. INSTALL FRONT EXHAUST PIPE ASSEMBLY
(a) Using a vernier caliper, measure the free length of the compression
springs.
Minimum Free Length:
41.5 mm (1.63 in.)
If the free l ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...