P3108 / INF538

DTC P3108-535 A/C Amplifier Communication Circuit Malfunction
DTC P3108-536 A/C Amplifier Communication Circuit Malfunction
DTC P3108-538 A/C Amplifier Communication Circuit Malfunction

DESCRIPTION

DTC Detection Condition:

The hybrid vehicle control ECU detects a wiring malfunction in the serial communication line between it and the with motor compressor assembly.

HINT: DTC P3108-535 may be stored due to an open circuit in the SMRB circuit or SMRG circuit.

Wiring Diagram:

Step 1:

Step 2-3:

Step 3(Continued)-4:

Step 4(Continued)-7:

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.

HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.