DTC B1125
Precautions: Precautions for Diagnosing Trouble · Precautions for Replacing Remote Controller · Precautions for Remote Controller Disposal · Precautions for Replacing Keyless Start Control Module · Precautions for Control Systems · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
B1125: Clutch / Shift Switch Malfunction M/T model: Inconsistency between signals from CPP No.1 switch or CPP No.2 switch and inhibit switch signal transmitted via CAN communication. A/T model: Inconsistency between signals from transmission range sensor or P position switch and transmission shift position signal transmitted via CAN communication. |
•CPP No.1 switch circuit / connector (M/T model)
•CPP No.1 switch (M/T model) •CPP No.2 switch circuit / connector (M/T model) •CPP No.2 switch (M/T model) •Transmission range sensor circuit / connector (A/T model) •TCM (including transmission range sensor) (A/T model) •P position switch circuit / connector (A/T model) •P position switch (A/T model) •Keyless start control module |
Circuit Diagram
M/T model
| [A]: | M16A model | [F]: | ECM connector (K14C model) (View: [a]) | 2. | CPP No.2 switch |
| [B]: | K14C model | [G]: | ECM connector (D16AA model) (View: [a]) | 3. | Starting motor control relay |
| [C]: | D16AA model | A1: | CPP No.1 switch signal circuit | 4. | ECM |
| [D]: | Keyless start control module connector (View: [a]) | A2: | CPP No.2 switch signal circuit | 5. | Keyless start control module |
| [E]: | ECM connector (M16A model) (View: [a]) | 1. | CPP No.1 switch |
A/T model
| [A]: | M16A model | A1: | Transmission range sensor signal circuit | 4. | Starting motor control relay |
| [B]: | K14C model | A2: | P position switch signal circuit | 5. | ECM |
| [C]: | Keyless start control module connector (View: [a]) | 1. | TCM (including transmission range sensor) | 6. | Keyless start control module |
| [D]: | ECM connector (M16A model) (View: [a]) | 2. | Select lever | ||
| [E]: | ECM connector (K14C model) (View: [a]) | 3. | P position switch |
DTC Confirmation Procedure
M/T model
1)Set ignition “ON”.
2)Depress clutch pedal fully for 3 seconds or more.
3)Release clutch pedal.
A/T model
1)Set ignition “ON” and leave ignition “ON” for 30 seconds.
DTC Troubleshooting
M/T model
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
DTC check
Is any DTC other than B1125 detected?
|
Go to troubleshooting for applicable DTC.
|
Go to Step 2.
|
| 2 |
CPP No.1 switch signal circuit check
1)Set ignition “OFF”.
2)Disconnect CPP No.1 switch, “E01”, “E484” and “L21” connectors.
3)Check for proper terminal connection to CPP No.1 switch, “E01”, “E484” and “L21” connectors.
4)If connections are OK, check the following points.
•Resistance of “A1” circuit: less than 1 Ω
•Resistance between “A1” circuit and ground: infinity •Resistance between “A1” circuit terminal and each terminal at CPP No.1 switch connector: infinity Is check result OK?
|
Go to Step 3.
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Repair or replace defective wire harness.
|
| 3 |
CPP No.2 switch signal circuit check
1)Disconnect CPP No.2 switch connector.
2)Check for proper terminal connection to CPP No.2 switch and “L21” connectors.
3)If connections are OK, check the following points.
•Resistance of “A2” circuit: less than 1 Ω
•Resistance between “A2” circuit and ground: infinity •Resistance between “A2” circuit terminal and each terminal at CPP No.2 switch connector: infinity Is check result OK?
|
Go to Step 4.
|
Repair or replace defective wire harness.
|
| 4 |
CPP No.1 switch check
1)Check CPP No.1 switch.
•M16A model:
 •K14C model: •D16AA model: Is check result OK?
|
Go to Step 5.
|
Replace CPP No.1 switch.
•M16A model:
•K14C model: •D16AA model: |
| 5 |
CPP No.2 switch check
1)Check CPP No.2 switch.
•M16A model:
•K14C model: •D16AA model: Is check result OK?
|
Replace keyless start control module and recheck DTC.
|
Replace CPP No.2 switch.
•M16A model:
•K14C model: •D16AA model: |
A/T model
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
DTC check
Is any DTC other than B1125 detected?
|
Go to troubleshooting for applicable DTC.
|
Go to Step 2.
|
| 2 |
DTC check
1)Check DTC in TCM.
Is there any DTC(s) detected?
|
Go to troubleshooting for applicable DTC.
|
Go to Step 3.
|
| 3 |
Transmission range sensor signal circuit check
1)Set ignition “OFF”.
2)Disconnect “C06”, “E01”, “E484” and “L21” connectors.
3)Check for proper terminal connection to “C06”, “E01”, “E484” and “L21” connectors.
4)If connections are OK, check the following points.
•Resistance of “A1” circuit: less than 1 Ω
•Resistance between “A1” circuit and ground: infinity •Resistance between “A1” circuit terminal and each terminal at “C06” connector: infinity Is check result OK?
|
Go to Step 4.
|
Repair or replace defective wire harness.
|
| 4 |
P position switch signal circuit check
1)Check “A2” circuit according to Step 1 of DTC B1126.
Is check result OK?
|
Go to Step 5.
|
Repair or replace defective wire harness.
|
| 5 |
Transmission range sensor check
1)Check transmission range sensor.
Is check result OK?
|
Go to Step 6.
|
Replace TCM.
|
| 6 |
P position switch check
1)Check P position switch.
Is check result OK?
|
Replace keyless start control module and recheck DTC.
|
Replace select lever.
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