| Last Modified: 12-11-2024 | 6.11:8.1.0 | Doc ID: RM100000002PAPB |
| Model Year Start: 2025 | Model: GR Corolla | Prod Date Range: [09/2024 - ] |
| Title: EA67F / EA68F (MANUAL TRANSMISSION / TRANSAXLE): MANUAL TRANSAXLE SYSTEM: Pattern Select Switch iMT Mode Circuit; 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 - ] | ||
|
Pattern Select Switch iMT Mode Circuit |
DESCRIPTION
When the iMT switch (combination switch assembly) is operated to turn the iMT system on, the iMT indicator (green) in the combination meter assembly illuminates.
When the iMT indicator (green) is illuminated, the iMT system is in standby.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK DTC OUTPUT (SFI SYSTEM) |
(a) Check for SFI system DTCs.
Powertrain > Engine > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
|
|
2. |
INSPECT iMT SWITCH (COMBINATION SWITCH ASSEMBLY) |
(a) Inspect the iMT Switch (combination switch assembly).
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![2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 - ]; EA67F / EA68F (MANUAL TRANSMISSION / TRANSAXLE): PATTERN SELECT SWITCH: INSPECTION](/t3Portal/stylegraphics/info.gif)
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (iMT SWITCH (COMBINATION SWITCH ASSEMBLY) - BODY GROUND) |
(a) Disconnect the I177 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 |
|---|---|---|
|
I177-5 (E) - Body ground |
Always |
Below 1 Ω |
(c) Connect the I177 iMT switch (combination switch assembly) connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (iMT SWITCH (COMBINATION SWITCH ASSEMBLY) - ECM) |
(a) Disconnect the I177 iMT switch (combination switch assembly) connector.
(b) Disconnect the A139 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I177-3 (MSW1) -A139-4 (MTMS) |
Always |
Below 1 Ω |
|
I177-3 (MSW1) or A139-4 (MTMS) - Body ground |
Always |
10 kΩ or higher |
(d) Connect the A139 ECM connector.
(e) Connect the I177 iMT switch (combination switch assembly) connector.
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|