Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform A Diagnostic System Check - Body Rear End? | Go to Step 2 | |
2 | Operate the rear wiper/washer and endgate/liftgate window release switch. Does the endgate window release? | Go to Step 3 | Go to Step 6 |
3 | Operate the liftgate/endgate lock cylinder switch. Does the endgate window release? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 23 |
5 |
Does the test lamp illuminate? | Go to Step 13 | Go to Step 14 |
6 |
Does the parameter change states? | Go to Step 9 | Go to Step 7 |
7 |
Does the scan tool parameter change states? | Go to Step 8 | Go to Step 15 |
8 | Connect a fused jumper between the liftgate window release switch signal circuit and the liftgate window release switch ground circuit. Does the scan tool parameter change states? | Go to Step 17 | Go to Step 24 |
9 |
Does the test lamp illuminate? | Go to Step 10 | Go to Step 25 |
10 | Connect a fused jumper between the liftglass relay battery positive and the liftgate window release actuator signal circuit. Does the liftglass release? | Go to Step 16 | Go to Step 11 |
11 |
Does the test lamp illuminate? | Go to Step 12 | Go to Step 26 |
12 | Connect a test lamp between the liftgate window release actuator signal circuit and the liftgate window release actuator ground circuit. Does the test lamp illuminate? | Go to Step 21 | Go to Step 27 |
13 | Test the door lock cylinder switch, LH control circuit for 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 34 | Go to Step 22 |
14 | Test the liftgate lock cylinder switch control circuit for 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 34 | Go to Step 20 |
15 | Test the liftgate window release switch signal circuit for 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 34 | Go to Step 18 |
16 | Test the relay control circuit for a high resistance or and open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | Go to Step 28 |
17 | Inspect for poor connections at the harness connector of the liftgate window release switch. 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 34 | Go to Step 19 |
18 | Inspect for poor connections at the harness connector of the lifgate control module (LGM). 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 34 | Go to Step 29 |
19 | Inspect for poor connections at the harness connector of the liftgate window release switch. 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 34 | Go to Step 30 |
20 | Inspect for poor connections at the harness connector of the liftgate lock cylinder switch. 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 34 | Go to Step 31 |
21 | Inspect for poor connections at the harness connector of the liftgate window release actuator. 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 34 | Go to Step 32 |
22 | Inspect for poor connections at the harness connector of the door lock cylinder switch, LH. 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 34 | Go to Step 33 |
23 | Repair the battery positive voltage circuit of the liftgate lock cylinder switch. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | -- |
24 | Repair the ground circuit of the liftgate lock cylinder switch. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | -- |
25 | Repair the battery positive voltage circuit of the liftglass relay. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | -- |
26 | Repair the signal circuit of the liftgate window release actuator. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | -- |
27 | Repair the ground circuit of the liftgate window release actuator. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 34 | -- |
28 | Replace the liftglass relay. Did you complete the replacement? | Go to Step 34 | -- |
29 |
Important: When replacing the liftgate control module (LGM) refer to Rear Body Control Module Programming . Replace the LGM. Refer to Liftgate Control Module Replacement . Did you complete the replacement? | Go to Step 34 | -- |
30 | Replace the liftgate window release switch. Did you complete the replacement? | Go to Step 34 | -- |
31 | Replace the liftgate lock cylinder switch. Refer to Liftgate Lock Cylinder Replacement . Did you complete the replacement? | Go to Step 34 | -- |
32 | Replace the liftgate window release actuator. Refer to Liftgate Lock Actuator Replacement . Did you complete the replacement? | Go to Step 34 | -- |
33 | Replace the door lock cylinder switch, LH. Did you complete the replacement? | Go to Step 34 | -- |
34 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
