Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics Connector End View Reference: Instrument Panel, Gages, and Console Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Does the transmission fluid temperature gage display that the fluid temperature is within the normal operating range? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the test light illuminate? | -- | Go to Step 4 | Go to Step 12 |
4 | Connect a test lamp between the ignition 1 voltage circuit of the transmission fluid temperature gage and the ground circuit of the transmission fluid temperature gage. Does the test light illuminate? | -- | Go to Step 5 | Go to Step 13 |
5 |
Does the transmission fluid temperature gage display at or below the specified value? | 40°C (104°F) | Go to Step 6 | Go to Step 7 |
6 |
Does the transmission fluid temperature gage display at or above the specified value? | 120°C (248°F) | Go to Step 10 | Go to Step 8 |
7 | Test the signal circuit of the automatic transmission fluid temperature sensor for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 11 |
8 | Test the signal circuit of the automatic transmission fluid temperature sensor for an open, for a short to voltage, or for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 9 |
9 | Test the ground circuit of the automatic transmission fluid temperature sensor for an open or for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 11 |
10 | Inspect for poor connections at the harness connector of the automatic transmission fluid temperature sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 15 |
11 | Inspect for poor connections at the harness connector of the automatic transmission fluid temperature gage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 14 |
12 | Repair the open or the high resistance in the ignition 1 voltage circuit of the transmission fluid temperature gage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 16 | -- |
13 | Repair the open or the high resistance in the ground circuit of the transmission fluid temperature gage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 16 | -- |
14 | Replace the transmission fluid temperature gage. Refer to Transmission Fluid Temperature Gage Replacement . Did you complete the replacement? | -- | Go to Step 16 | -- |
15 | Replace the automatic transmission fluid temperature sensor. Refer to Transmission Fluid Temperature Sensor Replacement in Automatic Transmission - Allison. Did you complete the replacement? | -- | Go to Step 16 | -- |
16 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
