Step
| Action
| Value(s)
| Yes
| No
|
1
|
Does the speedometer
operate?
| --
| Go to
Step 2
| Go to
Gages Inoperative - All
|
2
|
- Disconnect the engine coolant temperature (gauge) sensor connector.
- Connect the instrument panel tester tool J 33431-C
between the engine coolant temperature
(gauge) sensor harness connector terminal C and ground.
- Set the tester to 44 ohms.
- Turn the ignition switch to the RUN position.
Does the engine coolant temperature gauge read high, approximately 125°C
(260°F)?
| --
| Go to
Step 3
| Go to
Step 8
|
3
|
- Set the tester to 1365 ohms.
Does
the engine coolant temperature gauge read low, approximately 37°C (100°F)?
| --
| Go to
Step 4
| Go to
Step 5
|
4
|
- Check the engine coolant temperature sensor connector for a poor
connector for a poor connection.
- If OK, replace the engine coolant temperature sensor. Refer to
Engine Coolant Temperature Replacement in Engine Control.
- Inspect the system.
Is the symptom still present?
| --
| Go to
Step 5
| System OK
|
5
|
- Inspect for a poor connection or a short
to the voltage in CKT 135.
Does a poor
connection or a short to the voltage in CKT 135 exist?
| --
| Go to
Step 6
| Go to
Step 7
|
6
|
- Repair the poor connection or the short
to the voltage in CKT 135.
Is the symptom
still present?
| --
| Go to
Step 7
| System OK
|
7
|
- Replace the instrument cluster. Refer to
Instrument Cluster Replacement
- system.
Is the symptom still present?
| --
| Go to
Step 9
| System OK
|
8
|
- Inspect for a poor connection, an open,
or a short to ground in CKT 135.
Does
a poor connection, an open, or a short to ground in CKT 135 exist?
| --
| Go to
Step 9
| Go to
Step 7
|
9
|
- Repair the poor connection, the open, or the short to ground in
CKT 135.
- Inspect the system.
Is the symptom still present?
| --
| --
| System OK
|
