1. Inspect water pump assembly

(a) Visually check the drain hole and air hole for coolant leakage.
(b) Turn the pulley, and check that the water pump bearing moves smoothly and noiselessly.
If the bearing does not move smoothly and noiselessly, replace the water pump.
Removal
InstallationRadio Receiver Communication Error
INSPECTION PROCEDURE
1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE
Enter the diagnostic mode
Press the preset switch "3" to change to "Detailed
Information Mode".
Identify the component shown by the sub-code.
HINT:
"190 (radio receiver) ...
How to proceed with
troubleshooting
HINT:
Troubleshoot in accordance with the procedures on the
following pages
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX
COMMUNICATION SYSTEM (BEAN)
Use the intelligent tester to check for normal ...
Internal Control Module Random Access Memory
(RAM) Error
DTC P0604 Internal Control Module Random Access Memory
(RAM) Error
DESCRIPTION
The ECM continuously monitors its own internal memory status, internal
circuits, and output signals
transmitted to the throttle actuator. This self-check ensures that the ECM is
functioning properly. If any
malfu ...