DTC DETECTION LOGIC NOTE：

- If DTC B2603 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Logic.
- If DTC B2603 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Logic.
- If DTC B2603 is displayed with DTC B210F for IPDM E/R, first perform the trouble diagnosis for DTC B210F. Refer to DTC Logic.
- If DTC B2603 is displayed with DTC B2601 for IPDM E/R, first perform the trouble diagnosis for DTC B2601. Refer to DTC Logic.

DTC | Self-diagnosis name | DTC detecting condition | Possible causes
B2603 | SHIFT POSI STATUS | BCM detects the followings status for 500 ms or more when shift is in P position, and ignition switch is in the ON position.

- P/N position signal (from TCM): approx. 0 V
- A/T shift selector (detention switch): approx. 0 V

- Harness or connector
  (A/T shift selector circuit is open or shorted)
- Harness or connectors
  [TCM circuit is open or shorted]
- TCM
- BCM

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine under the following conditions and wait for at least 1 second.

- Shift lever is in the P position.
- Do not depress the brake pedal.

2. Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?
YES>>Go to Diagnosis Procedure.
NO>>INSPECTION END