Electronic Time & Alarm Control Module Input Tests
Check Electronic Time & Alarm Control Module (ETACM) connectors "A" and "B" for loose, broken or corroded terminals or wires. See ELECTRONIC TIME & ALARM CONTROL MODULE VOLTAGE (CONNECTOR "A") or ELECTRONIC TIME & ALARM CONTROL MODULE VOLTAGE (CONNECTOR "B") table. See Fig 1 or Fig 2 . Repair as necessary. If all voltage input values are as specified, replace ETACM.
ELECTRONIC TIME & ALARM CONTROL MODULE VOLTAGE (CONNECTOR "A")
| Terminal (Wire Color) | Circuit | Test Condition | Specification |
|---|---|---|---|
| A1 (White/Black) | Horn Relay | All Conditions | Battery Voltage |
| A2 (Blue/Red) | Rear Window Defroster Relay | Defroster Switch On | 0 Volts |
| A2 (Blue/Red) | Rear Window Defroster Relay | Defroster Switch Off | Battery Voltage |
| A3 (Green) | Fasten Seat Belts Indicator | Seat Belt Buckled | 0 Volts |
| A3 (Green) | Fasten Seat Belts Indicator | Seat Belt Unbuckled | Battery Voltage |
| A4 (Red) | Rear Window Defroster Switch Input | Defroster Switch ON | 0.4 Volts |
| A4 (Red) | Rear Window Defroster Switch Input | Defroster Switch OFF | 0.4 Volts |
| A5 (Yellow/Green) | Door Open Input | Door Open | 0 Volts |
| A5 (Yellow/Green) | Door Open Input | Door Closed | 1 Volt |
| A5 (Yellow/Green) | Door Open Input | Door Locked | 4 Volts |
| A5 (Yellow/Green) | Door Open Input | Door Unlocked | 4 Volts |
| A5 (Yellow/Green) | Door Open Input | System Armed | 4 Volts |
| A6 (Blue/Black) | Door Lock Switch Input | Lock | 4.3 Volts |
| A6 (Blue/Black) | Door Lock Switch Input | Unlock | 0 Volts |
| A7 (Green/Orange) | Rear Hatch Switch | Hatch Open | 0 Volts |
| A7 (Green/Orange) | Rear Hatch Switch | Hatch Closed | 0.4 Volts |
| A8 (Red/Black) | Seat Belt Switch | Seat Belt Buckled | 0 Volts |
| A8 (Red/Black) | Seat Belt Switch | Seat Belt Unbuckled | 4 Volts |
| A9 (Blue/Yellow) | Light Switch Input | Switch In HEAD Or PARK Position | Battery Voltage |
| A9 (Blue/Yellow) | Light Switch Input | Light Switch OFF | 0 Volts |
| A10 (Blue) | TURN Fuse | Ignition In ON Or START position | Battery Voltage |
| A10 (Blue) | TURN Fuse | Ignition OFF | 0 Volts |
| A11 (Blue/White) | Hazard Lights | Hazard Lights ON | 0 Volts |
| A11 (Blue/White) | Hazard Lights | Hazard Lights OFF | Battery Voltage |
| A12 (Red) | Rear Hatch Switch | Lock With Key | 4 Volts |
| A12 (Red) | Rear Hatch Switch | Unlock With Key | 0.4 Volts |
| A13 (White/Red) | Power Door Lock Switch | Power Door Lock Switch ON | 0 Volts |
| A13 (White/Red) | Power Door Lock Switch | Power Door Lock Switch OFF | Battery Voltage |
| A14 (Red/Green) | Power Door Lock Relay | Power Door Lock Switch ON | Battery Voltage |
| A14 (Red/Green) | Power Door Lock Relay | Power Door Lock Switch OFF | 0 Volts |
| A15 (White/Blue) | Hood Switch | Hood Open | 0 Volts |
| A15 (White/Blue) | Hood Switch | Hood Closed | 4 Volts |
| A16 (Brown/Black) | Lock Input | Lock | 4 Volts |
| A16 (Brown/Black) | Lock Input | Unlock | 0 Volts |
| 17 (Green/Yellow) | Rear Hatch Switch | Hatch Open | 0 Volts |
| 17 (Green/Yellow) | Rear Hatch Switch | Hatch Closed | 4 Volt |
| A19 (Light Green/Black) | Key In Ignition Input | Key In Ignition | Battery Voltage |
| A19 (Light Green/Black) | Key In Ignition Input | Key Out Of Ignition | 0 Volts |
| A20 (Light Green) | Room Fuse | All Conditions | Battery Voltage |
ELECTRONIC TIME & ALARM CONTROL MODULE VOLTAGE (CONNECTOR "B")
| Terminal (Wire Color) | Circuit | Test Condition | Specification |
|---|---|---|---|
| B2 (Black) | Ground | All Conditions | 0 Volts |
| B3 (Black/Red) | Door Lock Control | Lock Input | Battery Voltage |
| B3 (Black/Red) | Door Lock Control | Unlock Input | .4 Volt |
| B6 (Green) | Door Lock Fuse | All Conditions | Battery Voltage |
| B7 (Green) | Door Lock Control | Lock Input | 0.4 Volt Momentary Pulse |
| B7 (Green) | Door Lock Control | Unlock Input | 12 Volt Momentary Pulse |