SYSTEM TESTS
| WARNING | Deactivate air bag system before performing any service operation involving steering column components. See appropriate AIR BAG RESTRAINT SYSTEMS article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy. |
| CAUTION | Disconnect battery before disconnecting Generic Electronic Module (GEM). Failure to do so will result in GEM storing erroneous codes and may also result in erratic operation of GEM after reconnecting. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
Note. Complete the entire related system test for all symptoms present, before replacing GEM.
| Symptom | Perform Test |
|---|---|
| All Power Windows Inoperative (2-Door & 4-Door) | A |
| Driver's Door Power Window Inoperative (4-Door) | B |
| Driver's Door Power Window Inoperative (2-Door) | C |
| Right Front Power Window Inoperative (4-Door) | D |
| Right Front Power Window Inoperative (2-Door) | E |
| Left Rear Power Window Inoperative | F |
| Right Rear Power Window Inoperative | G |
| One-Touch Down Feature Inoperative | H |
| No Scan Tool Communication With GEM | J |
| All Windows Operate When Ignition Off | (1) |
| (1) Check accessory delay relay. See ACCESSORY DELAY RELAY under COMPONENT TESTS. If okay, repair Light Blue/Black wire. If faulty, replace relay. Retest system operation. | |
| (1) | Check accessory delay relay. See ACCESSORY DELAY RELAY under COMPONENT TESTS. If okay, repair Light Blue/Black wire. If faulty, replace relay. Retest system operation. |
SYMPTOM INDEX
ACCESSORY DELAY RELAY
Remove accessory delay relay from relay module. Using a DVOM, check relay continuity. Continuity should exist between relay terminals No. 85 and 86, and between terminals No. 30 and 87A. (Scheme 7) Using a fused jumper wire, connect positive battery voltage to relay terminal No. 85. Using another fused jumper wire, connect ground to relay terminal No. 86. Continuity should now exist between relay terminals No. 30 and 87. Replace relay if continuity is not as specified.
Scheme 7
BATTERY SAVER & ONE-TOUCH DOWN RELAYS
Remove battery saver relay or one-touch down relay from relay module. Using a DVOM, check for continuity. Continuity should exist between relay terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 4. (Scheme 8) Using a fused jumper wire, connect positive battery voltage to relay terminal No. 1. Using another fused jumper wire, connect ground to relay terminal No. 2. Continuity should now exist between relay terminals No. 3 and 5. Replace relay if continuity is not as specified.
Scheme 8
POWER WINDOW MASTER SWITCH
Remove master window/door lock switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Check for continuity between terminals as specified while operating switch. See appropriate MASTER SWITCH TESTING table. see scheme 3or see scheme 4. If continuity does not exist as specified, replace switch.
| Switch Position | Continuity Between Terminals No. | |
|---|---|---|
| Neutral | 8, 9, 10, 11, 13, 15, 16, 17 & 18 | |
| Left Front | ||
| Up | 8 & 19 | |
| Down | 10 & 19 | |
| Right Front | ||
| Up | 9 & 19 | |
| Down | 11 & 19 | |
| Left Rear | ||
| Up | 15 & 19 | |
| Down | 17 & 19 | |
| Right Rear | ||
| Up | 16 & 19 | |
| Down | 18 & 19 | |
| Lockout Unlocked | 19 & 20 | |
| Switch Illumination | 1 & 5; 12 & 14 | |
MASTER SWITCH TESTING (4-DOOR MODELS)
| Switch Position | Continuity Between Terminals No. | |
|---|---|---|
| Neutral | 1, 5, 9 & 11; 2, 4, 8 & 12 | |
| Left | ||
| Up | 3 & 5 | |
| Down | 1 & 3 | |
| Right | ||
| Up | 10 & 12 | |
| Down | 8 & 10 | |
| Switch Illumination | 6 & 7; 13 & 14 | |
MASTER SWITCH TESTING (2-DOOR MODELS)
POWER WINDOW MOTOR
Remove window motor from vehicle. See POWER WINDOW MOTOR under REMOVAL & INSTALLATION. Using 2 fused jumper wires, connect a fully charged battery to motor terminals. Observe motor. Motor should operate smoothly. Reverse leads. Motor should operate in reverse direction. Replace window motor if it does not operate as specified.
POWER WINDOW SINGLE SWITCH
Remove suspect window switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Check for continuity between terminals as specified while operating switch. See appropriate SWITCH TESTING table. If continuity does not exist as specified, replace switch. (Scheme 9)or (Scheme 10).
| Switch Position | Continuity Between Terminals No. |
|---|---|
| Neutral | 1 & 2; 5 & 6 |
| Up | 2 & 4 |
| Down | 4 & 5 |
| Switch Illumination | 3 & 7 |
SWITCH TESTING (RIGHT FRONT & RIGHT REAR)
| Switch Position | Continuity Between Terminals No. |
|---|---|
| Neutral | 1 & 5; 2 & 6 |
| Up | 4 & 5 |
| Down | 2 & 4 |
| Switch Illumination | 3 & 7 |
SWITCH TESTING (LEFT REAR)
Scheme 9
Scheme 10
GENERIC ELECTRONIC MODULE (GEM)
| CAUTION | Disconnect negative battery cable before disconnecting GEM. Failure to do so will result in GEM storing erroneous codes and may also result in erratic operation of GEM after reconnecting. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
| CAUTION | If replacing GEM, it is necessary to upload module configuration information to New Generation STAR (NGS) tester. After installation, download saved module configuration information to new GEM. |