REMOVAL
PROCEDURE
1. REMOVE RADIATOR ASSEMBLY AND FAN ASSEMBLY WITH MOTOR
HINT:
See page
2. REMOVE FAN
(a) Remove the nut and fan. |
|
3. REMOVE NO. 2 FAN
(a) Remove the nut and No. 2 fan. |
|
4. REMOVE COOLING FAN MOTOR INSULATOR
(a) Remove the 2 bolts and cooling fan motor insulator. |
|
5. REMOVE COOLING FAN MOTOR
(a) Remove the 3 screws and cooling fan motor. |
|
6. REMOVE NO. 2 COOLING FAN MOTOR
(a) Disconnect the No. 2 cooling fan motor connector and 2 clamps. |
|
(b) Remove the 3 screws and No. 2 cooling fan motor. |
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
...
Catalyst System Efficiency Below Threshold (Bank 1) (P0420)
MONITOR DESCRIPTION
The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter
(TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor, sends pre-catalyst information to
the ECM. The second sensor, the heat ...