| 1 |
CHECK OVERALL FUNCTION-I
- With SDT
- Turn ignition switch ON.
- Select "BRAKE SW1" in "Data list" mode with SDT.
- Check "BRAKE SW1" indication under the following conditions.
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- 2)
Without SDT
- Turn ignition switch ON.
- Check voltage between ECM terminal 108 and ground under the following conditions.
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OK or NG |
GO TO 2. |
GO TO 3. |
| 2 |
CHECK OVERALL FUNCTION-II
- With SDT
Check "BRAKE SW2" indication in "Data list" mode.
- Without SDT
Check voltage between ECM terminal 101 and ground under the following conditions.
OK or NG |
GO TO 14. |
GO TO 10. |
| 3 |
CHECK ASCD CLUTCH SWITCH POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ASCD clutch switch harness connector.
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- 3. Turn ignition switch ON.
- 4. Check voltage between ASCD clutch switch terminal 1 and ground under the following conditions with SDT or tester.
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OK or NG |
GO TO 8. |
GO TO 4. |
| 4 |
CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ASCD brake switch harness connector.
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- 3. Turn ignition switch ON.
- 4. Check voltage between ASCD brake switch terminal 1 and ground with SDT or tester.
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Voltage: Battery voltage
OK or NG |
GO TO 6. |
GO TO 5. |
| 5 |
DETECT MALFUNCTIONING PART
Check the following.
- Fuse block (J/B) connector F160
- 10 A fuse (No. 12)
- Harness for open or short between ASCD brake switch and fuse
|
Repair open circuit or short to ground in harness or connectors. |
|
| 6 |
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Check harness continuity between ASCD brake switch terminal 2 and ASCD clutch switch terminal 1. Refer to WIRING DIAGRAM
.
Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG |
GO TO 7. |
Repair open circuit or short to ground or short to power in harness or connectors. |
| 7 |
CHECK ASCD BRAKE SWITCH
Refer to
[P1572 ASCD BRAKE SWITCH ].
OK or NG |
GO TO 14. |
Replace ASCD brake switch. |
| 8 |
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check harness continuity between ECM terminal 108 and ASCD clutch switch terminal 2.
Refer to WIRING DIAGRAM
.
Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG |
GO TO 9. |
Repair open circuit or short to ground or short to power in harness or connectors. |
| 9 |
CHECK ASCD CLUTCH SWITCH
Refer to
[P1572 ASCD BRAKE SWITCH ].
OK or NG |
GO TO 14. |
Replace ASCD clutch switch. |
| 10 |
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect stop lamp switch harness connector.
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- 3. Check voltage between stop lamp switch terminal 2 and ground with SDT or tester.
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Voltage: Battery voltage
OK or NG |
GO TO 12. |
GO TO 11. |
| 11 |
DETECT MALFUNCTIONING PART
Check the following.
- Fuse block (J/B) connector F160
- 10 A fuse (No. 20)
- Harness for open or short between stop lamp switch and battery
|
Repair open circuit or short to ground or short to power in harness or connectors. |
|
| 12 |
CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Disconnect ECM harness connector.
- Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2.
Refer to WIRING DIAGRAM
.
Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG |
GO TO 13. |
Repair open circuit or short to ground or short to power in harness or connectors. |
| 13 |
CHECK STOP LAMP SWITCH
Refer to
[P1572 ASCD BRAKE SWITCH ].
OK or NG |
GO TO 14. |
Replace stop lamp switch. |
| 14 |
CHECK INTERMITTENT INCIDENT
Refer to
[SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT
] |
INSPECTION END |
|