TERMINALS OF ECU
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
*A |
Main Body ECU (Multiplex Network Body ECU) with 2 Connectors |
- |
- |
*1 |
Main Body ECU (Multiplex Network Body ECU) |
- |
- |
*a |
2 Connectors |
- |
- |
*A |
Main Body ECU (Multiplex Network Body ECU) with 1 Connector |
- |
- |
*1 |
Main Body ECU (Multiplex Network Body ECU) |
- |
- |
*a |
1 Connector |
- |
- |
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
Click here
(b) Reconnect the instrument panel junction block assembly connectors.
(c) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
MB-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
MB-30 (ACC) - Body ground |
- |
ACC power supply |
Ignition switch ACC |
11 to 14 V |
MB-30 (ACC) - Body ground |
- |
ACC power supply |
Ignition switch off |
Below 1 V |
MB-31 (BECU) - Body ground |
- |
Battery power supply |
Always |
11 to 14 V |
MB-32 (IG) - Body ground |
- |
IG power supply |
Ignition switch ON |
11 to 14 V |
MB-32 (IG) - Body ground |
- |
IG power supply |
Ignition switch off |
Below 1 V |
(d) Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.
Click here
(e) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F15-2 (UL3) - Body ground |
L - Body ground |
Driver door key-linked unlock input |
Driver door key cylinder in neutral position → on (unlock) |
Pulse generation → Below 1 V |
F15-29 (L2) - Body ground |
G - Body ground |
Driver door key-linked lock input |
Driver door key cylinder in neutral position → on (lock) |
Pulse generation → Below 1 V |
F15-6 (FLCY) - Body ground |
R - Body ground |
Front door courtesy light switch (for LH) input |
Front door LH open |
Below 1 V |
F15-6 (FLCY) - Body ground |
R - Body ground |
Front door courtesy light switch (for LH) input |
Front door LH closed |
Pulse generation |
F15-27 (FRCY) - Body ground |
BR - Body ground |
Front door courtesy light switch (for RH) input |
Front door RH open |
Below 1 V |
F15-27 (FRCY) - Body ground |
BR - Body ground |
Front door courtesy light switch (for RH) input |
Front door RH closed |
Pulse generation |
3H-8 (ACT-) - Body ground |
LA-B - Body ground |
Door lock motor unlock drive output |
Door control switch or driver door key cylinder off → on (unlock) |
Below 1 V → 11 to 14 V → Below 1 V |
3H-9 (ACT-) - Body ground |
B - Body ground |
Door lock motor unlock drive output |
Door control switch or driver door key cylinder off → on (unlock) |
Below 1 V → 11 to 14 V → Below 1 V |
3H-6 (ACT+) - Body ground |
R - Body ground |
Door lock motor lock drive output |
Door control switch or driver door key cylinder off → on (lock) |
Below 1 V → 11 to 14 V → Below 1 V |
3H-18 (ACT+) - Body ground |
R - Body ground |
Door lock motor lock drive output |
Door control switch or driver door key cylinder off → on (lock) |
Below 1 V → 11 to 14 V → Below 1 V |
3D-4 (ACTD) - Body ground |
B - Body ground |
Door lock motor unlock drive output |
Door control switch or driver door key cylinder off → on (unlock) |
Below 1 V → 11 to 14 V → Below 1 V |
3H-24 (LCTY) - Body ground |
BR - Body ground |
Rear door courtesy light switch (for LH) input |
Rear door LH open |
Below 1 V |
3H-24 (LCTY) - Body ground |
BR - Body ground |
Rear door courtesy light switch (for LH) input |
Rear door LH closed |
Pulse generation |
3A-31 (RCTY) - Body ground |
BR - Body ground |
Rear door courtesy light switch (for RH) input |
Rear door RH open |
Below 1 V |
3A-31 (RCTY) - Body ground |
BR - Body ground |
Rear door courtesy light switch (for RH) input |
Rear door RH closed |
Pulse generation |
3H-34 (BCTY) - Body ground |
SB - Body ground |
Back door courtesy light switch input |
Back door open |
Below 1 V |
3H-34 (BCTY) - Body ground |
SB - Body ground |
Back door courtesy light switch input |
Back door closed |
Pulse generation |
3H-20 (TR+) - Body ground |
Y - Body ground |
Back door lock motor drive output |
Back door closed → open |
Below 1 V → 11 to 14 V → Below 1 V |
3D-14 (LSR) - Body ground |
LG - Body ground |
Rear door LH/RH unlock detection switch input |
Rear door LH or RH unlocked |
Below 1 V |
3D-14 (LSR) - Body ground |
LG - Body ground |
Rear door LH/RH unlock detection switch input |
Rear door LH and RH locked |
Pulse generation |
3D-12 (LSFR) - Body ground |
GR - Body ground |
Front door RH unlock detection switch input |
Front door RH unlocked |
Below 1 V |
3D-12 (LSFR) - Body ground |
GR - Body ground |
Front door RH unlock detection switch input |
Front door RH locked |
Pulse generation |
3D-13 (LSFL) - Body ground |
B - Body ground |
Front door LH unlock detection switch input |
Front door LH unlocked |
Below 1 V |
3D-13 (LSFL) - Body ground |
B - Body ground |
Front door LH unlock detection switch input |
Front door LH locked |
Pulse generation |
3A-39 (UL1) - Body ground |
SB - Body ground |
Door control switch input |
Door control switch locked |
Below 1 V |
3A-39 (UL1) - Body ground |
SB - Body ground |
Door control switch input |
Door control switch off |
Pulse generation |
3D-16 (L1) - Body ground |
B - Body ground |
Door control switch input |
Door control switch unlocked |
Below 1 V |
3D-16 (L1) - Body ground |
B - Body ground |
Door control switch input |
Door control switch off |
Pulse generation |
F15-18 (BDSU) - Body ground*1 |
LG - Body ground |
Back door opener switch input |
Back door opener switch pushed |
Below 1 V |
F15-18 (BDSU) - Body ground*1 |
LG - Body ground |
Back door opener switch input |
Back door opener switch not pushed |
Pulse generation |
*1: w/o Smart Key System
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)
(a) Disconnect the F1 certification ECU (smart key ECU assembly) 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 |
---|---|---|---|---|
F1-4 (+B) - Body ground |
L - Body ground |
Battery power supply |
Always |
11 to 14 V |
F1-18 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the M67 certification ECU (smart key ECU assembly) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
M67-26 (TSW5) - Body ground |
LG - Body ground |
Back door opener switch input |
Back door opener switch assembly (open switch) off → on |
Below 1 V → Pulse generation |
CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/o Toyota Safety Sense P)
(a) Disconnect the F14 double lock door control relay assembly 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 |
---|---|---|---|---|
F14-12 (+B) - Body ground |
BE - Body ground |
Battery power supply |
Ignition switch off |
11 to 14 V |
F14-11 (CPUB) - Body ground |
SB - Body ground |
Battery power supply |
Ignition switch off |
11 to 14 V |
F14-7 (GND) - Body ground |
LA - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the F14 double lock door control relay assembly connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F14-8 (ACTS) - Body ground |
LG - Body ground |
All door double lock motor set on output |
Double lock unset |
Below 1 V |
F14-8 (ACTS) - Body ground |
LG - Body ground |
All door double lock motor set on output |
Double lock set |
11 to 14 V |
F14-1 (ACTR) - Body ground |
GR - Body ground |
All door double lock motor set off output |
Double lock set |
Below 1 V |
F14-1 (ACTR) - Body ground |
GR - Body ground |
All door double lock motor set off output |
Double lock unset |
11 to 14 V |
F14-6 (DLPD) - Body ground |
Y - Body ground |
Front RH double lock position switch input |
Double lock unset |
Pulse generation |
F14-6 (DLPD) - Body ground |
Y - Body ground |
Front RH double lock position switch input |
Double lock set |
Below 1 V |
F14-5 (DLPP) - Body ground |
V - Body ground |
Front LH double lock position switch input |
Double lock unset |
Pulse generation |
F14-5 (DLPP) - Body ground |
V - Body ground |
Front LH double lock position switch input |
Double lock set |
Below 1 V |
F14-4 (DLPR) - Body ground |
B - Body ground |
Rear RH double lock position switch input |
Double lock unset |
Pulse generation |
F14-4 (DLPR) - Body ground |
B - Body ground |
Rear RH double lock position switch input |
Double lock set |
Below 1 V |
F14-3 (DLPL) - Body ground |
L - Body ground |
Rear LH double lock position switch input |
Double lock unset |
Pulse generation |
F14-3 (DLPL) - Body ground |
L - Body ground |
Rear LH double lock position switch input |
Double lock set |
Below 1 V |
Toyota CH-R Service Manual > Steering Lock System: System Description
SYSTEM DESCRIPTION
UNLOCK OPERATION CONDITIONS FOR STEERING LOCK
(a) When the following condition is met, the unlock operation is performed.
The engine switch is on (ACC) or on (IG).
HINT:
When the engine switch is turned on (ACC) or on (IG) and the key and
certification ECU (sma ...
KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual > What to do in an emergency: In the event of an emergency while driving
If the vehicle stalls while driving
Operation
Reduce the speed and keep a straight
line.
Stop the vehicle to a safe place.
Turn the hazard warning flasher on.
Start the vehicle again.
If the engine still does not start, contact
a professional workshop or seek other
qualified assist ...