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DIAGNOSIS PROCEDURE |
STEP 1. Check that the stop lamps illuminate and extinguish normally. |
The stop lamps should illuminate
when the brake pedal is depressed, and extinguish when
released. |
Q.
Is the check result normal?
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STEP 2. Check the brake pedal height. |
Refer to GROUP 35A -
On-vehicle Service, Brake Pedal Check and Adjustment (Refer
to ![]() |
Q.
Is the check result normal?
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STEP 3. Check the stop lamp switch. |
Refer to GROUP 35A - Brake
Pedal and Stop Lamp Switch Continuity Check (Refer
to ![]() |
Q.
Is the check result normal?
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STEP 4. M.U.T.-III data list |
Item 26: Stop lamp switch (Refer to
data list reference table ![]() |
Q.
Is the check result normal?
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STEP 5. Connector check: C-127 stop lamp switch connector |
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Check for the contact with
terminals.Q.
Is the check result normal?![]() ![]() |
STEP 6. Measure the voltage at stop lamp switch connector C-127. |
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Disconnect the connector, and
measure the voltage between terminal No.2 and earth at the
harness side. OK: System voltage Q.
Is the check result normal?![]() ![]() |
STEP 7. Measure the voltage at engine-A/T-ECU connector C-111. |
(1)Connect stop lamp switch connector
C-127. |
STEP 8. Connector check: C-111 engine-A/T-ECU connector |
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Check for the contact with
terminals.Q.
Is the check result normal?![]() ![]() |
STEP 9. M.U.T.-III data list |
Item 26: Stop lamp switch (Refer to
data list reference table ![]() |
Q.
Is the check result normal?
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STEP 10. Connectors check: C-18 intermediate connector, C-111 engine-A/T-ECU connector, C-32 J/C (7) <Except for Hong Kong and Singapore> |
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Check for the contact with
terminals.Q.
Is the check result normal?![]() ![]() |
STEP 11. Check the harness between stop lamp switch connector C-127 terminal No.1 and engine-A/T-ECU connector C-111 terminal No.39. |
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Check the output line for short or
open circuit.Q.
Is the check result normal?![]() ![]() |
STEP 12. Connector check: C-125 intermediate connector |
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Check for the contact with
terminals.Q.
Is the check result normal?![]() ![]() |
STEP 13. Check the harness between stop lamp switch connector C-127 terminal No.2 and battery. |
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Check the power supply line for
short or open circuit.Q.
Is the check result normal?![]() ![]() |