Toyota Yaris: Manual Transaxle System / Pattern Select Switch iMT Mode Circuit

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Drivetrain / Ea67f (manual Transmission / Transaxle) / Manual Transaxle System / Pattern Select Switch iMT Mode Circuit

DESCRIPTION

Operating the iMT switch illuminates the iMT indicator light in the combination meter assembly. This displays the iMT system standby condition.

WIRING DIAGRAM

PROCEDURE

1.

CHECK DTC OUTPUT (SFI SYSTEM)

(a) Check for SFI system DTCs.

Click here

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

CHECK FOR INTERMITTENT PROBLEMS

A

2.

INSPECT iMT SWITCH (COMBINATION SWITCH ASSEMBLY)

(a) Disconnect the H18 iMT Switch (combination switch assembly) connector.

*a

Component without harness connected

(iMT Switch (Combination Switch Assembly))

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

8 (MSW1) - 5 (E)

Switch pushed

Below 1 Ω

8 (MSW1) - 5 (E)

Switch not pushed

10 kΩ or higher

(c) Connect the H18 iMT Switch (combination switch assembly) connector.

NG

REPLACE iMT SWITCH (COMBINATION SWITCH ASSEMBLY)

OK

3.

CHECK HARNESS AND CONNECTOR (iMT SWITCH (COMBINATION SWITCH ASSEMBLY) - BODY GROUND)

(a) Disconnect the H18 iMT switch (combination switch assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

H18-5 (E) - Body ground

Always

Below 1 Ω

(c) Connect the H18 iMT switch (combination switch assembly) connector.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (iMT SWITCH (COMBINATION SWITCH ASSEMBLY) - ECM)

(a) Disconnect the H18 iMT switch (combination switch assembly) connector.

(b) Disconnect the A106 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

H18-8 (MSW1) -A106-4 (MTMS)

Always

Below 1 Ω

H18-8 (MSW1) or A106-4 (MTMS) - Body ground

Always

10 kΩ or higher

(d) Connect the A106 ECM connector.

(e) Connect the H18 iMT switch (combination switch assembly) connector.

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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