CHECK FOR INTERMITTENT PROBLEMS
1. DESCRIPTION
HINT:
A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected through the ECU data monitor 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) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
(f) 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 |
Acceleration 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 |
- |
IG Voltage Value Decreased |
IG1 voltage value decreased detection/ Error or Normal |
Normal |
- |
IG Voltage Value Increased |
IG1 voltage value increased 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 |
- |
(g) While observing the screen, gently jiggle the connectors or wire harnesses between the ECUs and sensors or between ECUs.
OK:
Normal display appears.
HINT:
The connector and/or wire harness has a momentary interruption (open circuit) if the display changes. Repair or replace the connectors and/or wire harnesses as one of them is faulty.
Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw
rate and acceleration (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembly has a built-in yaw rate and acceleration sensor and
detects the vehicle's condition using 2 ...
Runnable Signal Malfunction (B2286,P0335)
DESCRIPTION
These DTCs are stored when the engine speed signal sent by the ECM via direct
line and the engine speed signal sent via CAN communication do not match.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal,
the power source mode returns to the s ...
License Plate Light Assembly
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. REMOVE LICENSE PLATE LIGHT ASSEMBLY
(a) Disconnect the con ...