Remote Keyless Entry Systems GMC Savana I

DESCRIPTION

Remote keyless entry system allows driver to operate vehicle door locks and endgate window release from outside vehicle using a hand-held transmitter. Keyless entry receiver detects and decodes signals and issues signals to control door locks and endgate window release. System uses existing power door lock components.

OPERATION

Transmitter must be within 33 feet (10 meters) of vehicle for receiver to detect coded signal. When LOCK button is depressed once, transmitter and keyless entry receiver receives a signal with a valid vehicle access code, lock function sequence is performed. Keyless entry receiver will lock all doors.

Unlock function is separated into 2 operations depending on how UNLOCK button is pressed on transmitter. If UNLOCK button is depressed once, only left door is unlocked. If UNLOCK button is depressed twice within 1-5 seconds, all other doors will be unlocked.

When REAR 2X button is depressed 2 times, remote control door lock receiver unlocks rear door only. When any UNLOCK button is depressed, interior dome lights are turned on for 40 seconds, or until ignition switch is turned ON.

COMPONENT LOCATIONS

COMPONENT LOCATIONS

Scheme 58

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Scheme 68

TRANSMITTER

1. Ground terminal No. 4 (Black wire) to terminal No. 8 (Black/White wire) of Data Link Connector (DLC) located under lower left side of instrument panel. (Scheme 69) Receiver will respond by locking and unlocking all doors. Press LOCK and UNLOCK buttons simultaneously on first transmitter to be programmed. Receiver will respond by locking/unlocking all doors.
2. Press both LOCK and UNLOCK buttons simultaneously on all transmitters to be programmed (up to 4). Receiver will again respond by locking/unlocking all doors. Remove ground jumper from DLC terminals No. 4 and 8. Transmitter operation can be verified by locking and unlocking doors and automatically activating liftgate release.

Scheme 69

RESYNCHRONIZATION

1. Resynchronization may be necessary due to security methods used by Remote Keyless Entry (RKE) system. Transmitters do not send the same signal twice. Receiver will not respond to a signal it has been sent previously, preventing recording and playback of transmitter signal. Resynchronization will be necessary if the following occurs: Transmitter battery is very weak. Transmitter battery is changed. Vehicle battery is replaced. Vehicle battery is disconnected. Transmitter buttons have been pushed 256 times out of range of receiver. To resynchronize transmitter to receiver, stand within 5 feet to vehicle, simultaneously depress and hold LOCK and UNLOCK buttons on transmitter for 7 seconds. Door locks should cycle to confirm resynchronization.

PRELIMINARY INSPECTION

Check PWR ACCY fuse (25-amp). Ensure all electrical connectors, circuits and grounds are good. Try second transmitter. If second transmitter operates system, replace battery in first transmitter. Ensure transmitter battery terminals are clean and making good contact. Ensure power door locks system is operational. If power door locks do not function properly, repair as necessary. See POWER DOOR LOCKS article.

SYSTEM TESTS

Note. To prevent damage to terminal, connector Test Adaptor Kit (J 35616-A) must be used whenever a diagnostic procedure requires checking or probing a terminal. To locate and identify terminals, see WIRING DIAGRAMS .

SYMPTOM INDEX

TEST A: LEFT FRONT DOOR DOES NOT LOCK OR UNLOCK

1. Disconnect left front door lock actuator motor connector. Connect test light between ground and left front door lock actuator motor connector terminal "A" (Tan wire). Unlock all doors at any power door lock switch. If test light illuminates, go to next step. If test light does not illuminate, go to step 3 .
2. Connect test light between ground and left front door lock actuator motor connector terminal "B" (Gray wire). Lock all doors at any power door lock switch. If test light illuminates, replace left front power door lock actuator motor. If test light does not illuminate, repair open circuit in Gray wire between left front door lock motor and splice S244.
3. Disconnect remote control door lock receiver connector. Connect self-powered test light between ground and left front door lock actuator motor connector terminal "A" (Tan wire). If test light does not illuminate, go to next step. If test light illuminates, repair short to ground in Tan wire.
4. Connect self-powered test light between Tan wire at left front door lock actuator motor connector terminal "A" (Tan wire) and remote control door lock receiver connector, terminal "A" (Tan wire). If test light illuminates, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING. If test light does not illuminate, repair open circuit in Tan wire between remote control door lock receiver and left front door lock actuator motor.

TEST B: RIGHT FRONT DOOR DOES NOT LOCK OR UNLOCK

1. Disconnect right front door lock actuator motor connector. Connect test light between ground and connector terminal "A" (Tan wire). Unlock all doors at any power door lock switch. If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Tan wire between right front door lock actuator motor and splice S243.
2. Connect test light between ground and right front door lock actuator connector terminal "B"(Gray wire). If test light illuminates, replace right front door lock actuator motor. If test light does not illuminate, repair open circuit in Gray wire between right front door lock motor and splice S244.

TEST C: SIDE DOOR DOES NOT LOCK OR UNLOCK WHEN DOOR IS CLOSED

1. Disconnect side door lock actuator motor connector. Connect test light between ground and connector terminal "A" (Tan wire). Close side door. Unlock all doors at any power door lock switch. If test light illuminates, go to next step. If test light does not illuminates, repair open circuit in Tan wire between side door lock motor and splice S243.
2. Connect test light between ground and side door lock actuator connector terminal "B" (Gray wire). If test light illuminates, replace side door lock actuator motor. If test light does not illuminate, repair open circuit in Gray wire between side door lock motor and splice S244 or S315.

TEST D: REAR DOOR DOES NOT LOCK OR UNLOCK

1. Disconnect rear door lock actuator motor connector. Connect test light between motor connector terminal "A" (Tan wire) and ground. Unlock all doors at any power door lock switch. If test light illuminates, go to next step. If test light does not illuminate, go to step 3 .
2. Connect test light between ground and rear door lock actuator motor connector terminal "B" (Gray wire). Lock all doors at any power door lock switch. If test light illuminates, replace rear door lock actuator motor. If test light does not illuminate, repair open circuit in Gray wire between rear door lock actuator motor and splice S244 or S315.
3. Disconnect remote control door lock receiver connector. Connect self-powered test light between ground and rear door lock actuator motor connector terminal "A" (Tan wire). If test light does not illuminate, go to next step. If test light illuminates, repair short to ground in Black or Tan wires between remote control door lock receiver and rear door lock motor.
4. Connect a fused jumper wire between remote control door lock receiver connector between ground and terminal "G" (Black wire). Connect test light between ground and rear door lock actuator motor connector terminal "A" (Tan wire). If test light illuminates, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING. If test light does not illuminate, repair open circuit in Black or Tan wires between remote control door lock receiver and rear door lock motor.

TEST E: RIGHT FRONT & SIDE DOORS UNLOCK FROM DOOR LOCK SWITCHES, BUT NOT FROM REMOTE CONTROL DOOR LOCK RECEIVER

1. Disconnect remote control door lock receiver connector C1. Remove power door lock relay, located behind right kick panel. Connect self-powered test light between power door lock relay terminal "B" (Tan wire) and remote control door lock receiver connector, terminal "H" (Tan wire).
2. If test light illuminates, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING. If test light does not illuminate, repair open circuit in Tan wire between remote control door lock receiver and splice S243.

TEST F: RIGHT FRONT & SIDE DOORS UNLOCK FROM REMOTE CONTROL DOOR LOCK RECEIVER, BUT NOT FROM DOOR LOCK SWITCHES

1. Disconnect remote control door lock receiver connector. Remove power door lock relay located behind right kick panel. Connect self-powered test light between power door lock relay terminal "B" (Tan wire) and remote control door lock receiver connector, terminal "H" (Tan wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Tan wire between power door lock relay and splice S243.
2. Connect test light between ground and power door lock relay connector terminal "A" (White wire). Unlock doors at any power door lock switch. If test light illuminates, replace power door lock relay. If test light does not illuminate, repair open circuit in White wire between power door lock relay and splice S242.

TEST G: ALL POWER DOOR LOCKS INOPERATIVE

1. Remove power door lock relay located behind right kick panel. Connect test light between ground and power door lock relay terminal "C" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Orange wire.
2. Connect test light between power door lock relay terminal "D" (Black wire) and ground. If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Black wire.
3. Disconnect left front door lock actuator motor connector. Connect test light between Gray wire at motor connector terminal "B" and relay terminal "E". If test light illuminates, replace power door lock relay. If test light does not illuminate, repair open circuit in Gray wire.

TEST H: ALL POWER DOOR LOCKS DO NOT LOCK

1. Remove power door lock relay located behind right kick panel. Connect test light between ground and power door lock relay terminal "C" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Orange wire between power door lock relay and splice S228.
2. Connect test light between ground and power door lock relay terminal "F" (Light Blue wire). If test light illuminates, replace power door lock relay. If test light does not illuminate, repair open circuit in Light Blue wire between power door lock relay and splice S241.

TEST I: LEFT FRONT POWER DOOR LOCK SWITCH INOPERATIVE

Disconnect left front power door lock switch connector. Connect test light between ground and connector terminal "E" (Orange wire). If test light illuminates, replace left front power door lock switch. If test light does not illuminate, repair open circuit in Orange wire between left front door lock switch and splice S228.

TEST J: RIGHT FRONT POWER DOOR LOCK SWITCH INOPERATIVE

Disconnect right front power door lock switch connector. Connect test light between ground and connector terminal "E" (Orange wire). If test light illuminates, replace right front power door lock switch. If test light does not illuminate, repair open circuit in Orange wire between power door lock switch and splice 228.

TEST K: RIGHT REAR POWER DOOR LOCK SWITCH INOPERATIVE

Disconnect right rear power door lock switch connector. Connect test light between ground and connector terminal "D" (Orange wire). If test light illuminates, replace right rear power door lock switch. If test light does not illuminate, repair open circuit in Orange wire between right rear power door lock switch and splice S228.

TEST L: LEFT FRONT POWER DOOR LOCK SWITCH DOES NOT LOCK

Disconnect left front power door lock switch connector. Connect self-powered test light between connector terminals "E" (Orange wire) and "A" (Light Blue wire). Actuate lock at left front power door lock switch. If test light illuminates, repair open circuit in Light Blue wire between left front power door lock switch and splice S241. If test light does not illuminate, replace left front power door lock switch.

TEST M: LEFT FRONT POWER DOOR LOCK SWITCH DOES NOT UNLOCK

Disconnect left front power door lock switch connector. Connect self-powered test light between connector terminals "E" (Orange wire) and "D" (White wire). Actuate unlock at left front power door lock switch. If test light illuminates, repair open circuit in White wire between left front power door lock switch and splice S242. If test light does not illuminate, replace left front power door lock switch.

TEST N: RIGHT FRONT POWER DOOR LOCK SWITCH DOES NOT UNLOCK

Disconnect right front power door lock switch connector. Connect self-powered test light between connector terminals "E" (Orange wire) and "D" (White wire). Actuate unlock at right front power door lock switch. If test light illuminates, repair open circuit in White wire between right front power door lock switch and splice S242. If test light does not illuminate, replace right front power door lock switch.

TEST O: RIGHT FRONT POWER DOOR LOCK SWITCH DOES NOT LOCK

Disconnect right front power door lock switch connector. Connect self-powered test light between connector terminals "E" (Orange wire) and "A" (Light Blue wire). Actuate lock at right front power door lock switch. If test light illuminates, repair open circuit in Light Blue wire between right front power door lock switch and splice S241. If test light does not illuminate, replace right front power door lock switch.

TEST P: RIGHT REAR POWER DOOR LOCK SWITCH DOES NOT UNLOCK

Disconnect rear power door lock switch connector. Connect self-powered test light between connector terminals "D" (Orange wire) and "E" (White wire). Actuate unlock at rear power door lock switch. If test light illuminates, repair open circuit in White wire between right rear power door lock switch and splice S242. If test light does not illuminate, replace rear power door lock switch.

TEST Q: RIGHT REAR POWER DOOR LOCK SWITCH DOES NOT LOCK

Disconnect right rear power door lock switch connector. Connect self-powered test light between connector terminals "D" (Orange wire) and "B" (Light Blue wire). Actuate lock at rear power door lock switch. If test light illuminates, repair open circuit in Light Blue wire between right rear power door lock switch and splice S241. If test light does not illuminate, replace rear power door lock switch.

TEST R: SIDE DOOR DOES NOT LOCK 5 SECONDS AFTER IT IS CLOSED

1. Disconnect power door lock control module connector. Connect test light between ground and connector terminal "G" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Orange wire between power door lock module and splice S241.
2. Connect self-powered test light between ground and power door lock control module connector terminal "A" (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Black wire power door lock module and splice S206.
3. Close side door. Connect self-powered test light between ground and power door lock control module connector terminal "F" (White/Black wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 5 .
4. Disconnect side door jamb switch connector. Connect self-powered test light between ground and power door lock control module connector terminal "F" (White/Black wire). If test light illuminates, repair short to ground in White/Black wire between power door lock module and side door jamb switch. If test light does not illuminate, replace side door jamb switch.
5. Connect test light between ground and power door lock control module connector terminal "C" (Light Blue wire). Lock all doors at any power door lock switch. If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Light Blue wire between power door lock module and splice S241.
6. Connect test light between ground and power door lock control module connector terminal "H" (Light Blue wire). Lock all doors at any power door lock switch. If test light illuminates, replace power door lock control module. If test light does not illuminate, repair open circuit in Light Blue wire between power door lock module and splice S241.

TEST S: SIDE DOOR LOCKS 5 SECONDS AFTER IT IS CLOSED (UNLOCK WAS ACTUATED FOLLOWING INITIAL LOCK ACTUATION)

1. Disconnect power door lock control module connector. Connect test light between ground and connector terminal "D" (White wire). Unlock all doors at any power door lock switch.
2. If test light illuminates, replace power door lock control module. If test light does not illuminate, repair open circuit in White wire between power door lock control module and splice S242.

TEST T: POWER DOOR LOCK CONTROL MODULE ATTEMPTS TO LOCK DOORS WHILE SIDE DOOR REMAINS OPEN

1. Disconnect power door lock control module connector. Connect self-powered test light between ground and module connector terminal "F" (White/Black wire). Open side door. If test light does not illuminate, go to next step. If test light does illuminate, replace power door lock control module.
2. Disconnect side door jamb switch connector. Connect self-powered test light between ground and side door jamb switch connector terminal "B" (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Black wire between side door jamb switch and ground.
3. Connect fused jumper wire between battery voltage and power door lock control module connector terminal "F" (White/Black wire). Connect test light between ground and side door jamb switch connector terminal "A" (White/Black wire). If test light illuminates, replace side door jamb switch. If test light does not illuminate, repair open circuit in White/Black wire between power door lock control module and side door jamb switch.

TEST U: DOOR LOCKS DO NOT OPERATE USING REMOTE CONTROL DOOR LOCK TRANSMITTER

1. Disconnect remote control door lock receiver connector. Connect test light between ground and receiver connector, terminal "E" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Orange wire between remote control door lock receiver and splice S228.
2. Connect test light between ground and remote control door lock receiver connector, terminal "F" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Orange wire between remote control door lock receiver and splice S228.
3. Disconnect remote control door lock receiver connector. Connect self-powered test light between ground and receiver connector terminal "N" (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Black wire between remote control door lock receiver and splice S206.
4. Reprogram a known-good transmitter. See «TRANSMITTER»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__transmitter) under PROGRAMMING. Attempt to operate keyless entry system. If new transmitter operates, replace old transmitter. If new transmitter does not operate, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING.

TEST V: REMOTE CONTROL DOOR LOCK RECEIVER DOES NOT UNLOCK DOORS

1. Disconnect remote control door lock receiver connector. Connect test light between ground and receiver connector, terminal "R" (Light Blue wire). Lock all doors from any power door lock switch. If test light illuminates, go to next step. If test light does not illuminate, repair open circuit in Light Blue wire between remote control door lock receiver and splice S241.
2. Reprogram a known-good transmitter. See «TRANSMITTER»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__transmitter) under PROGRAMMING. Attempt to operate keyless entry system. If new transmitter operates, replace old transmitter. If new transmitter does not operate, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING.

TEST W: LEFT FRONT & REAR DOORS DO NOT UNLOCK FROM SWITCH

1. Disconnect remote control door lock receiver connector. Connect test light between ground and receiver connector terminal "B" (White wire). Unlock all doors from any power door lock switch.
2. If test light illuminates, replace remote control door lock receiver. Reprogram replacement remote control door lock receiver to transmitter(s). See «RESYNCHRONIZATION»(/gmc/savana/i-1996-2002/remont/door-locks-anti-theft-systems/#remote-keyless-entry-systems__resynchronization) under PROGRAMMING. If test light does not illuminate, repair open circuit in White wire between remote control door lock receiver and splice S242.

REMOVAL & INSTALLATION

1. Remove engine cover and interior trim.
2. Disconnect remote control door lock receiver connector. (Scheme 70)
3. Remove the plastic fasteners that retain the remote control door lock receiver to the sound insulation.
4. Remove remote control door lock receiver.
5. To install, reverse removal procedure.

Scheme 70

Scheme 71

Scheme 72

Scheme 73

Scheme 74

See also:
• POWER DOOR LOCKS
• WIRING DIAGRAMS
• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• RESYNCHRONIZATION
• TRANSMITTER