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4E-21 ABS: DTC Detecting Condition ®) control module monitors the voltage at the terminal of each sensor while the ignition switch is ON. When the voltage is not within the specified range, an applicable DTC will be set. Also, when no sensor signal is NOTE
DTC Troubleshooting Step Action Yes No 1 Was “ABS Check” performed? Go to Step 2. 2 1) Turn ignition switch OFF. ®) hydraulic unit / control module connector. 3) Check for proper connection to ABS (ESP ®) control module at each sensor terminal. 4) If OK, then turn ignition switch ON and measure voltage between applicable sensor terminal of module connector Is it 0 V? Go to Step 4. ABS wheel speed 3 1) Disconnect applicable ABS wheel speed sensor coupler with ignition switch OFF. 2) Measure resistance between the following points. • Both ABS (ESP ®) hydraulic unit / control module connector (1) terminals a pair of applicable sensor • Between applicable sensor terminal of ABS (ESP ®) hydraulic unit / control module connector and vehicle • Between applicable sensor terminal of module connector and corresponding terminal of ABS wheel Are each check results OK? Go to Step 4. Circuit open or short to 1 2 I5JB0A450014-02 |