## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-382

26. Check for continuity between body ground and the appropriate ECM/PCM connector terminal (see table).

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOUR
No. 1 | P0301 | A30 | YEL/GRN
No. 2 | P0302 | A29 | BLU/RED
No. 3 | P0303 | A28 | WHT/BLU
No. 4 | P0304 | A27 | BRN

Is there continuity?

YES | - Repair short in the wire between the ECM/PCM and the ignition coil.
NO | - Go to step 27.

27. Connect the appropriate ignition coil 3P connector terminal No. 1 and body ground with a jumper wire (see table).

IGNITION COIL 3P CONNECTOR

Wire side of female terminals

PROBLEM CYLINDER | DTC | WIRE COLOUR
No. 1 | P0301 | YEL/GRN
No. 2 | P0302 | BLU/RED
No. 3 | P0303 | WHT/BLU
No. 4 | P0304 | BRN

28. Check for continuity between body ground and the appropriate ECM/PCM connector terminal (see table).

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOUR
No. 1 | P0301 | A30 | YEL/GRN
No. 2 | P0302 | A29 | BLU/RED
No. 3 | P0303 | A28 | WHT/BLU
No. 4 | P0304 | A27 | BRN

Is there continuity?

YES | - Go to step 29.
NO | - Repair open in the wire between the ECM/PCM and the ignition coil.

29. Check the compression.

Is the engine compression OK?

YES | - Substitute a known-good ECM/PCM and recheck (see page 11-313). If symptom/indication goes away, replace the original ECM/PCM.
NO | - Repair the engine.

30. Disconnect ECM/PCM connector B (24P).
31. Turn the ignition switch ON (II).