( TF09E00K722000R2201FAAT00 )
EPS DTC Troubleshooting: 22-01
DTC 22-01:
 Engine Speed Signal (Regular Diagnosis)
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Test-drive the vehicle. Drive the vehicle at 10 km/h (7 mph) for 3 seconds or more.
  1. Check the ENGINE SPEED in the EPS DATA LIST with the HDS.
Is there 440 rpm (min −1 ) or less at idle?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the EPS control unit connector C (16P).
  1. Start the engine.
  1. Measure the voltage between EPS control unit connector C (16P) terminal No. 7 and body ground.
Is there any voltage?
YES -
Go to Step 9 .
NO -
Go to Step 14 .
  1. Turn the ignition switch to LOCK (0).
  1. Short the SCS line with the HDS.
  1. Disconnect the ECM/PCM connector A (49P).
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between EPS control unit connector C (16P) terminal No. 7 and body ground.
Is there any voltage?
YES -
Repair short to power in the wire between the EPS control unit and ECM/PCM.■
NO -
Check for loose terminal in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit. ■
  1. Turn the ignition switch to LOCK (0).
  1. Short the SCS line with the HDS.
  1. Disconnect the ECM/PCM connector A (49P).
  1. Check for continuity between EPS control unit connector C (16P) terminal No. 7 and body ground.
Is there continuity?
YES -
Repair short to body ground in the wire between the EPS control unit and the ECM/PCM.■
NO -
Go to Step 18 .
  1. Check for continuity between EPS control unit connector C (16P) terminal No. 7 and ECM/PCM connector A (49P) terminal No. 29.
Is there continuity?
YES -
Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then go to Step 1 and recheck. If the ECM/PCM was updated and DTCs are not indicated, troubleshooting is complete. If the ECM/PCM was substituted and DTCs are not indicated, replace the original ECM/PCM. ■
NO -
Repair open in the wire between the EPS control unit and the ECM/PCM.■