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ABS DTC Troubleshooting: 62-21

DTC 62-21:
 ABS Modulator-control Unit IG High Voltage
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0), then start the engine.
  1. Check for DTCs with the HDS.
Is DTC 62-21 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Check and note BATTERY voltage in the ABS DATA LIST with the HDS.
  1. Using a voltmeter, measure and note the voltage between the battery terminals.
    NOTE: If the voltage is beyond 15.1 V, troubleshoot the alternator regulator circuit.
  1. Compare the voltage noted in Step 5 to the voltage in Step 6 .
Is the difference between the two voltage readings less than 3 V?
YES -
Intermittent failure, the system is OK at this time. Check for loose terminals at the ABS modulator-control unit 25P connector. Refer to intermittent failures troubleshooting. If the code resets after clearing, replace the ABS modulator-control unit.
NO -