Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Does the vehicle lower? | -- | Go to Step 2 | Go to Step 7 |
2 | Connect a test lamp from terminal D, PNK (639) to ground Load Leveling Height Sensor. Does the test lamp light? | -- | Go to Step 3 | Go to Step 12 |
3 | Connect a test lamp from terminal C, LT BLU (1298) to ground at the Load Leveling Height Sensor. Does the test lamp light? | -- | Go to Step 4 | Go to Step 13 |
4 | Connect a self-powered test lamp from terminal A, BLK (1350) to ground at the Load Leveling Height Sensor. Does the test lamp light? | -- | Go to Step 5 | Go to Step 16 |
5 | Replace the Load Leveling Height Sensor. Is the action complete? | -- | System OK | -- |
6 | Connect a test lamp, (back probe), from terminal C, ORN (1840) to ground at the Load Leveling Pump. Does the test lamp light? | -- | Go to Step 8 | Go to Step 7 |
7 | Locate and Repair the open in ORN (1840) wire between UBEC and Load Leveling Pump. Is the action complete? | -- | System OK | -- |
8 | Connect a fused jumper wire (back probe) from terminal B, WHT (320) to ground at the Load Leveling Pump. Does the vehicle lower? | -- | Go to Step 9 | Go to Step 10 |
9 | Locate and Repair the open WHT (320) wire between Load Leveling Pump and the Load Leveling Height Sensor. Is the action complete? | -- | System OK | -- |
10 | Replace the Load Leveling Pump. Is the action complete? | -- | System OK | -- |
11 | Locate and Repair the open in PNK (639) wire between Load Leveling Height Sensor and Splice S473. Is the action complete? | -- | System OK | -- |
12 | Connect a test lamp from (back probe) terminal D, ORN (1840) at the Load Leveling Timer Relay to ground. Does the test lamp light? | -- | Go to Step 14 | Go to Step 13 |
13 | Locate and Repair the open in ORN (1840) wire between the Load Leveling Timer Relay and Splice S475. Is the action complete? | -- | System OK | -- |
14 | Connect a test lamp from (back probe) terminal B, LT BLU (1298) at the Load Leveling Timer Relay to ground. Does the test lamp light? | -- | Go to Step 15 | Go to Step 16 |
15 | Locate and repair the open in LT BLU (1298) wire between the Load Leveling Timer Relay and the Load Leveling Height Sensor. Is the action complete? | -- | System OK | -- |
16 | Locate and Repair the open in BLK (1350) wire between the Load Leveling Height Sensor and G470. Is the action complete? | -- | System OK | -- |
17 | Replace the Load Leveling Timer Relay. Is the action complete? | -- | System OK | -- |
