EPS DTC Troubleshooting: 22-01
DTC 22-01:
 Engine Speed Signal (Initial diagnosis)
NOTE: If the MIL indicator is on, troubleshoot the PGM-FI system first.
  1. Turn the ignition switch to LOCK (0).
  1. Connect the HDS to the data link connector (DLC).
  1. Start the engine.
  1. Check the NE in the DATA LIST with the HDS.
Is there 0 engine rpm at idle?
YES -
Go to Step 5 .
NO -
The system is OK at this time.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect EPS control unit connector D (28P).
  1. Short the SCS line with the HDS.
  1. Disconnect ECM connector A (49P) (L13Z1 engine model) or ECM connector A (44P) (except L13Z1 engine model).
  1. Check for continuity between EPS control unit connector D (28P) terminal No. 3 and body ground.
Is there continuity?
YES -
Repair short to body ground in the wire between the EPS control unit and the ECM.■
NO -
Go to Step 10 .
  1. Connect ECM connector A (49P) (L13Z1 engine model) or ECM connector A (44P) (except L13Z1 engine model).
  1. Turn the ignition switch to ON (II).