Toyota CH-R Service Manual: Terminals Of Ecm

TERMINALS OF ECM

ECM

HINT:

The standard voltage and resistance of each ECM terminal is shown in the table below.

In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage or resistance between the terminals is shown under "Specified Condition".

Use the illustration above as a reference for the ECM terminals.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A38-1 (BATT) - C63-59 (E1)

R - W-B

Battery (for measuring battery voltage and for ECM memory)

Always

11 to 14 V

A38-2 (+B) - C63-59 (E1)

B - W-B

Power source of ECM

Ignition switch ON

11 to 14 V

A38-3 (+B2) - C63-59 (E1)

B - W-B

Power source of ECM

Ignition switch ON

11 to 14 V

A38-9 (STP) - C63-59 (E1)

R - W-B

Stop light switch assembly signal

Brake pedal depressed

7.5 to 14 V

Brake pedal released

Below 1.5 V

A38-13 (CANH) - C63-59 (E1)

R - W-B

CAN communication line

Ignition switch ON

Pulse generation

A38-23 (NSW) - C63-59 (E1)

W - W-B

Park/neutral position switch signal

Ignition switch ON and shift lever in P or N

Below 1 V

Ignition switch ON and shift lever not in P or N

11 to 14 V

A38-26 (CANL) - C63-59 (E1)

P - W-B

CAN communication line

Ignition switch ON

Pulse generation

A38-42 (SFTU) - C63-59 (E1)

B - W-B

Up-shift position switch signal

Ignition switch ON and shift lever in M

11 to 14 V

Ignition switch ON and shift lever in "+"

Below 1 V

A38-43 (SFTD) - C63-59 (E1)

SB - W-B

Down-shift position switch signal

Ignition switch ON and shift lever in M

11 to 14 V

Ignition switch ON and shift lever in "-"

Below 1 V

A38-46 (MREL) - C63-59 (E1)

G - W-B

EFI-MAIN NO. 1 relay

Ignition switch ON

11 to 14 V

A38-59 (S) - C63-59 (E1)

W - W-B

M position switch signal

Ignition switch ON and shift lever in M, "+" or "-"

11 to 14 V

Ignition switch ON and shift lever not in M, "+" or "-"

Below 1 V

C63-29 (+BM) - C63-59 (E1)

P - W-B

Power source of throttle actuator

Always

11 to 14 V

C63-39 (SLP+) - C63-38 (SLP-)

LG - R

Shift solenoid valve SLP signal

Engine idling

Pulse generation

C63-41 (SC) - C63-59 (E1)

W - W-B

Shift solenoid valve SC signal

  • For 1 second after moving shift lever from P to D or R, or N to D or R
  • Lock-up ON to OFF

Pulse generation

C63-43 (SLU+) - C63-42 (SLU-)

BR - LG

Shift solenoid valve SLU signal

Lock-up turned from OFF to ON

Pulse generation

C63-45 (SLS+) - C63-44 (SLS-)

B - L

Shift solenoid valve SLS signal

Engine idling

Pulse generation

C63-59 (E1) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

C63-64 (R) - C63-59 (E1)

R - W-B

R position switch signal

Ignition switch ON and shift lever in R

11 to 14 V

Ignition switch ON and shift lever not in R

Below 1 V

C63-65 (D) - C63-59 (E1)

Y - W-B

D position switch signal

Ignition switch ON and shift lever in D, M, "+" or "-"

11 to 14 V

Ignition switch ON and shift lever not in D, M, "+" or "-"

Below 1 V

C63-67 (SL) - C63-59 (E1)

GR - W-B

Shift solenoid valve SL signal

Lock-up operating

Pulse generation

C63-69 (N) - C63-59 (E1)

L - W-B

N position switch signal

Ignition switch ON and shift lever in N

11 to 14 V

Ignition switch ON and shift lever not in N

Below 1 V

C63-70 (P) - C63-59 (E1)

B - W-B

P position switch signal

Ignition switch ON and shift lever in P

11 to 14 V

Ignition switch ON and shift lever not in P

Below 1 V

C63-79 (PTO) - C63-109 (EPTO)

BR - P

Oil pressure sensor signal

Engine idling with shift lever in P

0.8 to 1.2 V

C63-110 (VCPT) - C63-109 (EPTO)

G - P

Power supply for oil pressure sensor

Ignition switch ON

4.5 to 5.5 V

C63-125 (NTO) - C63-59 (E1)

V - W-B

Transmission revolution sensor (NT) signal

When driving with shift lever in D

Pulse generation

C63-126 (NTB) - C63-59 (E1)

P - W-B

Power supply for transmission revolution sensor (NT)

Ignition switch ON

11 to 14 V

C63-123 (NIN+) - C63-124 (NIN-)

V - L

Transmission revolution sensor (NIN) signal

When driving with shift lever in D

Pulse generation

C63-127 (NOTO) - C63-59 (E1)

G - W-B

Transmission revolution sensor (NOUT) signal

When driving with shift lever in D

Pulse generation

C63-128 (NOTB) - C63-59 (E1)

R - W-B

Power supply for transmission revolution sensor (NOUT)

Ignition switch ON

11 to 14 V

C63-129 (THO1) - C63-130 (ETHO)

Y - BR

CVT fluid temperature sensor signal

CVT fluid temperature: 60 to 120°C (140 to 248°F)

0.2 to 1.0 V

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