Self-Diagnostic Capabilities
- Use an analog voltmeter or tester and diagnostic connector located at fuse block to read fault codes. See Fig 1.
- Random Access Memory (RAM) of TCU is capable of storing up to 10 different fault codes. Fault codes are stored in order of occurrence. One fault code can be stored up to 3 times.
- If 10 fault codes have already been stored, addition of one or more new fault codes will cause the oldest codes to be cleared.
- Stored fault codes are cleared when battery is disconnected. Fail-safe system activation locks transaxle in 3rd gear and allows vehicle operation in event of system malfunction.
- Fail-safe fault codes are also stored in RAM. Up to 3 fail-safe codes can be stored.
- Fail-safe operation (locked in 3rd) is cancelled when ignition switch is cycled OFF, but fail-safe code is retained in RAM.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA