DTC DETECTION LOGIC ■ CAUTION ■

- Before TCM is replaced, the IP characteristics must be extracted, based on the information read out from the malfunctioning TCM. For reading out the IP characteristic data, refer to “CONSULT-III GT-R TCM CONFIGURATION MANUAL”.
- If no IP characteristic data can be extracted TCM and the transmission assembly must be replaced as a set.

DTC | Self-diagnosis name | DTC detection condition | Possible cause
U0100 | Lost communication with ECM/PCM "A" | A DTC is set if TCM cannot receive the CAN communication signals from ECM for 2 seconds or more. |

- ECM
- Harness or connector
  (CAN communication line is open or shorted)

DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE OPERATION
If another “DTC CONFIRMATION PROCEDURE” is performed just before the next test, turn the ignition switch OFF and wait for 10 seconds or more, then perform the next test.
>>GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

1. Start the engine, and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of “TRANSMISSION”.

Without CONSULT-III

1. Start the engine, and wait for 2 seconds or more.
2. Check self-diagnosis.

Is DTC U0100 detected?
YES>>Go to Diagnosis Procedure (NHPC).
NO>>Go to Intermittent Incident.