COMPONENTS
ILLUSTRATION
ILLUSTRATION
InspectionDiagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting On-Board Diagnostic (OBD II) vehicles, the vehicle must
be connected to the OBD II scan tool (complying with SAE J1987). Various data output
from the vehicle TCM can then be read.
(b) OBD II regul ...
Air Fuel Ratio Sensor
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
2. REMOVE COOL AIR INTAKE DUCT SEAL
3. REMOVE INLET AIR CLEANER ASSEMBLY
4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
5. REMOV ...
Cooling Fan Circuit
DESCRIPTION
The ECM turns on or off the fan relays using signals calculated from the engine
coolant temperature, air conditioning (ON/OFF), air conditioner refrigerant pressure,
engine speed, and vehicle speed signals.
The ECM switches the circuit of the ...