Low Engine Coolant Indicator Always On Diesel Only
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Instrument Cluster System Check? | -- | Go to Step 2 | |
2 |
Is continuity present? | -- | Go to Step 4 | Go to Step 3 |
3 | Replace the Low Coolant Level Sensor. Refer to Radiator Surge Tank Replacement in Engine Cooling. Is the repair complete? | -- | -- | |
4 | Connect a J 39200 DMM (continuity) between the Low Coolant Level Sensor connector cavity B and ground. Is continuity present? | -- | Go to Step 6 | Go to Step 5 |
5 | Locate and repair the open in CKT 150 (BLK) between the Low Coolant Level Sensor and G105. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
6 |
Is continuity present? | -- | Go to Step 8 | Go to Step 7 |
7 | Locate and repair the open in CKT 1478 (LT GRN) between the Low Coolant Level Indicator and the Low Coolant Level Sensor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Connect a J 39200 DMM (volts) between cavity A of the Low Coolant Level Indicator Module and ground. Is battery voltage present? | -- | Go to Step 10 | Go to Step 9 |
9 | Locate and repair the open in CKT 39 (PNK) between the IP fuse Block and the Low Coolant Level Indicator Module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 | Connect a J 39200 DMM (continuity) between cavity C of the Low Coolant Level Indicator Module and ground. Is continuity present? | -- | Go to Step 12 | Go to Step 11 |
11 | Locate and repair the open in CKT 150 (BLK) between the Low Coolant Level Indicator Module and G200. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
12 |
Is continuity present? | -- | Go to Step 14 | Go to Step 13 |
13 | Locate and repair the open in CKT 68 (YEL/BLK) between the I/P Cluster and the Low Coolant Level Indicator Module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
14 | Connect a J 39200 DMM (continuity) between cavities 22 and 25 of the I/P Cluster. Is continuity present? | -- | Go to Step 16 | Go to Step 15 |
15 | Replace the I/P Cluster. Refer to Instrument Cluster Replacement Is the repair complete? | -- | -- | |
16 | Replace the Low Coolant Level Indicator Module. Refer to Coolant Level Module Replacement in Engine Cooling. Is the repair complete? | -- | -- |
