CHECK FOR INTERMITTENT PROBLEMS
1. CHECK FOR INTERMITTENT PROBLEMS
HINT:
A momentary interruption (open circuit) in the connectors and/or wire harnesses between the sensors and ECUs can be detected using the ECU Data List function of the Techstream.
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Follow the directions on the Techstream to display the Data List and select areas where momentary interruptions should be monitored.
HINT:
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
FR Speed Open |
Front speed sensor RH open circuit detection/ Error or Normal |
Normal |
- |
FL Speed Open |
Front speed sensor LH open circuit detection/ Error or Normal |
Normal |
- |
RR Speed Open |
Rear speed sensor RH open circuit detection/ Error or Normal |
Normal |
- |
RL Speed Open |
Rear speed sensor LH open circuit detection/ Error or Normal |
Normal |
- |
EFI Communication Open |
ECM communication open circuit detection/ Error or Normal |
Normal |
- |
Yaw Rate Open |
Yaw rate and acceleration sensor open circuit detection/ Error or Normal |
Normal |
- |
Deceleration Open |
Deceleration sensor open circuit detection/ Error or Normal |
Normal |
- |
Steering Open |
Steering angle sensor open circuit detection/ Error or Normal |
Normal |
- |
Master Cylinder Open |
Master cylinder pressure sensor open circuit detection/ Error or Normal |
Normal |
- |
FR Speed Sensor Voltage Open |
Front speed sensor RH voltage open circuit detection/ Error or Normal |
Normal |
- |
FL Speed Sensor Voltage Open |
Front speed sensor LH voltage open circuit detection/ Error or Normal |
Normal |
- |
RR Speed Sensor Voltage Open |
Rear speed sensor RH voltage open circuit detection/ Error or Normal |
Normal |
- |
RL Speed Sensor Voltage Open |
Rear speed sensor LH voltage open circuit detection/ Error or Normal |
Normal |
- |
M/C Pressure Sensor Noise |
Master cylinder pressure sensor noise detection/ Error or Normal |
Normal |
- |
Yaw Rate Sensor Voltage Open |
Yaw rate and acceleration sensor voltage open circuit detection/ Error or Normal |
Normal |
- |
EFI Communication Invalid |
ECM communication invalid detection/ Error or Normal |
Normal |
- |
Master Cylinder Pressure Sensor Power Supply Open |
Master cylinder pressure sensor power supply voltage status/ Error or Normal |
Normal |
- |
Solenoid Power Supply Open |
Solenoid power supply voltage status/ Error or Normal |
Normal |
- |
Motor Power Supply Open |
Motor power supply voltage status/ Error or Normal |
Normal |
- |
Stop Switch Open |
Momentary interruption (open circuit) status in wire harness between skid control ECU (brake actuator assembly) and stop light switch assembly status/ Error or Normal |
Normal |
- |
(f) While observing the screen, gently jiggle the connector or wire harness between the ECU and sensors, or between ECUs.
OK:
Normal is displayed.
HINT:
If the display changes, the connector and/or the wire harness has caused a momentary interruption of the circuit. Repair or replace the connector and/or wire harness as one of them is faulty.
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the negative (-) battery terminal. Therefore, make sure to read the
disconnecting the cable from the negative (-) battery terminal notices before pr ...
If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the vehicle
in the normal way, stop the vehicle using the following procedure:
Steadily step on the brake pedal
with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort required ...
Deck Light Relay
Inspection
INSPECTION
PROCEDURE
1. REMOVE DECK LIGHT RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard:
Tester Connection
Condition
Specified Condition
...