Testing For Open In Data Line
Turn ignition switch to LOCK position. Disconnect Body Control Module (BCM) harness connectors. Disconnect all Local Control Unit (LCU) harness connectors. Check for continuity in data line between appropriate terminals of LCU and BCM harness connectors. See DATA LINE CONTINUITY CHECK
table. See Figure
- Figure
. If continuity exists, check data lines for shorts. See TESTING FOR SHORT IN DATA LINES
. If continuity does not exist, repair open in appropriate data line as necessary. See WIRING DIAGRAMS
.
DATA LINE CONTINUITY CHECK
| LCU Connector Terminal (Wire Color) |
BCM Connector Terminal (Wire Color) |
| LCU 01 No. 3 (Red/Yellow) |
No. 70 (Red/Yellow) |
| LCU 02 No. 3 (Red/Black) |
No. 61 (Red/Black) |
| LCU 03 No. 3 (Red/Yellow) |
No. 70 (Red/Yellow) |
| LCU 04 No. 3 (Red/Yellow) |
No. 61 (Red/Black) |
| LCU 05 No. 22 (Purple) |
No. 67 (Red/Black) |