Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Body Rear End Schematics | |||
1 | Did you perform the Body Rear End Diagnostic System Check? | Go to Step 2 | |
2 |
Did the folding top lid release? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the folding top lid release parameter change states? | Go to Step 4 | Go to Step 5 |
4 | With a scan tool, command the TONN REL relay on. Did the folding top lid release? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 9 |
5 |
Does the folding top lid release? | Go to Step 18 | Go to Step 6 |
6 | Connect a fused jumper between the signal circuit of the folding top lid switch and a good ground. Does the folding top lid release? | Go to Step 7 | Go to Step 8 |
7 | Repair the open or high resistance in the ground circuit of the folding top lid switch. Did you find and correct the condition? | Go to Step 22 | -- |
8 | Test the signal circuit of the folding top lid switch for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | Go to Step 21 |
9 |
Does the test lamp illuminate at both circuits? | Go to Step 10 | Go to Step 11 |
10 |
Does the test lamp illuminate only when the TONN REL relay is commanded ON? | Go to Step 13 | Go to Step 12 |
11 | Repair the open or high resistance in the battery positive voltage circuit of the TONN REL relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | -- |
12 | Test the control circuit of the TONN REL relay for a short to power, short to ground, an open or high resistance. 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 22 | Go to Step 21 |
13 | Momentarily connect a fused jumper wire across the switch side of the TONN REL relay fuse block. Does the folding top lid release? | Go to Step 19 | Go to Step 14 |
14 |
Does the test lamp illuminate? | Go to Step 20 | Go to Step 15 |
15 | Connect a test lamp between the control circuit of the folding top lid latch and a good ground. Does the test lamp illuminate? | Go to Step 16 | Go to Step 17 |
16 | Repair the open or high resistance in the ground circuit of the folding top lid latch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | -- |
17 | Repair the open or high resistance in the control circuit of the folding top lid latch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | -- |
18 | Replace the folding top lid switch. Did you complete the replacement? | Go to Step 22 | -- |
19 | Replace the TONN REL relay. Did you complete the replacement? | Go to Step 22 | -- |
20 | Replace the tonneau lid latch. Refer to Rear Compartment Lid Latch Replacement . Did you complete the replacement? | Go to Step 22 | -- |
21 |
Important: When replacing the body control module, refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System. Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 22 | -- |
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
