DIAGNOSIS SYSTEM
DESCRIPTION
When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the skid control ECU (brake actuator assembly).
The skid control ECU (brake actuator assembly) records DTCs when it detects a malfunction in itself or in its circuits.
To check for DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream can be used to clear the DTCs, activate various actuators, and check the Freeze Frame Data and Data List.
(a) Check the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before proceeding to the next step.
(b) Check the DLC3.
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DIAGNOSIS
(a) If a malfunction occurs in one part of the system, the skid control ECU (brake actuator assembly) illuminates the warning light corresponding to the malfunctioning system (ABS warning light, brake system warning light (red indicator) or slip indicator light) or blinks the brake hold operated indicator light.
(b) DTCs are simultaneously stored in memory. The DTCs can be read by connecting SST between terminals TC and CG of the DLC3 and observing the blinking pattern of the ABS warning and slip indicator lights, or by connecting the Techstream.
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(c) This system has a Test Mode (signal check) function.
The DTCs can be read by connecting SST between terminals TS and CG of the DLC3 and observing the blinking pattern of the ABS warning and slip indicator lights, or by connecting the Techstream.
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WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) When the ignition switch is turned to ON, check that the ABS warning light, brake system warning light (red indicator), VSC OFF indicator light, multi-information display (TRAC OFF message) brake hold standby indicator light, brake hold operated indicator light and slip indicator light come on for approximately 3 seconds.
HINT:
Trouble Area |
See Procedure |
---|---|
ABS warning light circuit (Remains on) |
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ABS warning light circuit (Does not come on) |
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Brake system warning light (red indicator) circuit (Remains on) |
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Brake system warning light (red indicator) circuit (Does not come on) |
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TRAC OFF indicator light circuit (Remains on) |
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TRAC OFF indicator light circuit (Does not come on) |
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VSC OFF indicator light circuit (Remains on) |
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VSC OFF indicator light circuit (Does not come on) |
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Slip indicator light circuit (Remains on) |
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Slip indicator light circuit (Does not come on) |
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Brake hold standby indicator light circuit |
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Brake hold operated indicator light circuit |
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Toyota CH-R Service Manual > Power Window Control System: Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power
Window Switch RH
DESCRIPTION
If the manual up and down functions operate normally but the auto up and down
functions do not, the power window control system may be in fail-safe mode.
If power window initialization has not been performed, the auto up and down functions
will not operate.
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WIRING ...
Toyota CH-R Service Manual > Power Window Control System: Jam Protection Function does not Operate
DESCRIPTION
This symptom may occur for any of the power windows.
The jam protection function operates within a specified range during the manual
up or auto up operation.
CAUTION / NOTICE / HINT
NOTICE:
If a power window regulator motor assembly has been replaced with a
new one, in ...