Seat Belts - Automatic Ford Tempo I

DESCRIPTION & OPERATION

The Passive Restraint System operates electrically. After entering the vehicle and closing the door, insert the key into the ignition and turn to the ON position. A motor will cause the shoulder belt to slide along a belt track starting at the front body A-pillar and moving rearward to its locked position at the B-pillar.

The shoulder belt warning indicator lamp in the instrument panel will illuminate four to eight seconds. In the unlikely event the shoulder belt should stall before it reaches the B-pillar, the indicator lamp will begin to flash after nine seconds and will continue to flash until the shoulder belt is in the proper locked position. If the belt fails to reach the B-pillar or the indicator lamp continues to flash refer to MANUAL OVERRIDE SYSTEM procedure.

The shoulder belt will automatically adjust itself to allow comfort and freedom of movement. It will lock tight only under heavy braking or impacts of approximately 3 MPH (5km/h) or more.

MANUAL OVERRIDE SYSTEM

If the shoulder belt does not move or stops before reaching the B-pillar position, perform the following steps before driving the vehicle.

Scheme 1

1. Open and close door(s). Make sure the door is completely closed.
2. Using a coin or screwdriver, remove cover at lower end of the B-pillar interior trim panel. Turn override knob clockwise to move shoulder belt manually until it stops at the B-pillar. (Scheme 1) WARNING: For Fig. (Scheme 1) if it is necessary to use the override knob to put the shoulder belt in position, have the system serviced by a qualified technician as soon as possible.
3. If the belt does not mover to the B-pillar, the belt may be broken or the motor drive gear stripped. Grasp the belt and pull it towards the B-pillar while turning the knob on the motor clockwise. This should move the belt to the lowest position on the B-pillar. This will allow the occupant(s) to position the belt manually over the shoulder until the system can be serviced properly.

Scheme 2

SEAT BELT FUNCTIONALITY CHECK

SEAT BELT FUNCTIONALITY CHECK

WARNING INDICATORS FUNCTIONALITY CHECK

WARNING INDICATORS FUNCTIONALITY CHECK

TRACK LIMIT SWITCH DIAGNOSIS

1. Checking Track Limit Switch. Disconnect the switch from the harness. Using a digital Volt-Ohm meter on 200 ohm scale. Measure resistance with plunger extended. If the switch is closed, go to next step. If switch is open, replace switch.
2. Verifying Switch Check. Depress switch plunger. Check ohmmeter indication. If switch is closed, replace switch. If switch is open, switch is OK. Reconnect harness to switch.

DOOR AJAR SWITCH DIAGNOSIS

1. Checking Door Ajar Switch. Disconnect switch from wiring harness. Door in latched position. Using a digital Volt-Ohm meter on 200 ohm scale, measure resistance between switch terminal and ground. If switch is OPEN, go to next step. If switch is closed, replace switch.
2. Checking Switch Check. Check to verify switch is open. If switch is open, replace switch. If switch is closed, switch is OK. Reconnect harness to switch.

SPOOL RELEASE SWITCH DIAGNOSIS

1. Checking Spool Release Switch. Disconnect both switches connected in series, located at the retractor release mechanism. Using a digital Volt-Ohm meter on 200-ohm scale. Measure resistance across switch terminals. If switch is closed, go to next step. If switch is open, replace switch.
2. Checking Release Mechanism. When one or both release mechanism levers are in the up position, switch should be open. If switch is closed, replace switch. If switch is open, switch is OK. Reconnect harness to switch.

Scheme 3

Note. As per Ford Motor Company Bulletin No. 87-15-3, if a vehicle specific wire color in a connector does not match the diagram shown, it can usually be identified by comparing the other colors shown at the wire connectors. Specific wire color deviations in the manufacturing of a wire harness are usually for a short duration. Refer to the PASSIVE RESTRAINT PIN & CIRCUIT IDENTIFICATION CHART below.

Scheme 4

PASSIVE RESTRAINT PIN & CIRCUIT IDENTIFICATION CHART

SYMPTOM/CONDITION-TO-PINPOINT TEST MENU

Note. The limit switches are energized for only 7-10 seconds in order to monitor the movement of the belt. After the appropriate switch(es) signals the module, power to the limit switch(es) is cut off.

Note. For best results, use Rotunda Passive Restraint System Tester (0007-00034) with the accompanying PINPOINT TESTS tables below, that follow the DIAGNOSTIC TIPS table.

DIAGNOSTIC TIPS

Note. The limit switches are energized for only 7-10 seconds in order to monitor the movement of the belt. After the appropriate switch(es) signals the module, power to the limit switch(es) is cut off.

Note. For best results, use Rotunda Passive Restraint System Tester (0007-00034) with the accompanying PINPOINT TESTS A through H below.

A1: CHECK HARNESS AND "A" LIMIT SWITCH CLOSED POSITION

1. Remove access cover over the motor of the side to be checked.
2. Rotate the motor by hand so that the transport is somewhere in between both ends of track but at least 3 inches from either end of track.
3. Remove passive restraint module to gain access to mating connector.
4. Set Digital Volt-Ohmmeter on 200 ohm scale, use Rotunda Digital Volt-Ohmmeter 007-00001 or equivalent.
5. Measure resistance between pins of mating connector for the passive restraint module: Driver side between Pins 5 and 24. Passenger side between Pins 23 and 24.
6. Is resistance greater than 10 ohms? NO GO to «A2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__a2-check-harness-and-a-limit) . YES GO to «A3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__a3-check-a-limit-switch-closed) .

A2: CHECK HARNESS AND "A" LIMIT SWITCH OPEN POSITION

1. Rotate the motor by hand so that the transport is at the A-pillar.
2. Measure resistance between pins of mating connector for the passive restraint module: Driver side between Pins 5 and 24. Passenger side between Pins 23 and 24.
3. Is resistance greater than 500k ohms? NO GO to «A4»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__a4-check-a-limit-switch-open) . YES Switch and wiring OK.

A3: CHECK "A" LIMIT SWITCH CLOSED POSITION

1. Remove the trim over the track and the "A" limit switch.
2. Disconnect the connector from the limit switch.
3. Measure resistance between pins of the limit switch.
4. Is resistance greater than 10 ohms? NO GO to «A5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__a5-check-harness-from-module-mating) . YES REPLACE switch. INSTALL original passive restraint module.

A4: CHECK "A" LIMIT SWITCH OPEN POSITION

1. Remove the trim over the track and the "A" limit switch.
2. Ensure carrier fully depresses plunger of limit switch.
3. Disconnect the connector from the limit switch.
4. Measure resistance between pins of the limit switch.
5. Is resistance greater than 500k ohms? NO REPLACE switch. INSTALL original passive restraint module. YES Go to «A5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__a5-check-harness-from-module-mating) .

A5: CHECK HARNESS FROM MODULE MATING CONNECTOR TO LIMIT SWITCH

1. Measure resistance between pins of the limit switch harness to pins of the Passive Restraint Module mating connector: Driver side--one limit switch pin to Pin 24 (ground), other limit switch pin to Pin 5. Passenger side--one limit switch pin to Pin 24 (ground), other limit switch pin to Pin 23.
2. Is continuity present? Yes Wiring OK. NO CORRECT wiring. INSTALL original passive restraint module.

B1: CHECK HARNESS AND "B" LIMIT SWITCH CLOSED POSITION

1. Remove access cover over the motor of the side to be checked.
2. Rotate the motor by hand so that the transport is somewhere in between both ends of track but at least 3 inches from either end of track.
3. Remove passive restraint module to gain access to mating connector.
4. Set Digital Volt-Ohmmeter on 200 ohm scale, use Rotunda Digital Volt-Ohmmeter 007-00001 or equivalent.
5. Measure resistance between pins of mating connector for the passive restraint module: Driver side between Pins 18 and 24. Passenger side between Pins 21 and 24.
6. Is resistance greater than 10 ohms? NO GO to «B2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__b2-check-harness-and-b-limit) . YES GO to «B3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__b3-check-b-limit-switch-closed) .

B2: CHECK HARNESS AND "B" LIMIT SWITCH OPEN POSITION

1. Rotate the motor by hand so that the transport is at the B-pillar.
2. Measure resistance between pins of mating connector for the passive restraint module: Driver side between Pins 18 and 24. Passenger side between Pins 21 and 24.
3. Is resistance greater than 500k ohms? NO GO to «B4»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__b4-check-b-limit-switch-open) . YES Switch and wiring OK.

B3: CHECK "B" LIMIT SWITCH CLOSED POSITION

1. Remove the trim over the track and the "B" limit switch.
2. Disconnect the connector from the limit switch.
3. Measure resistance between pins of the limit switch.
4. Is resistance greater than 10 ohms? NO GO to «B5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__b5-check-harness-from-module-mating) . YES REPLACE switch. INSTALL original passive restraint module.

B4: CHECK "B" LIMIT SWITCH OPEN POSITION

1. Remove the trim over the track and the "B" limit switch.
2. Ensure carrier fully depresses plunger of limit switch.
3. Disconnect the connector from the limit switch.
4. Measure resistance between pins of the limit switch.
5. Is resistance greater than 500k ohms? NO REPLACE switch. INSTALL original passive restraint module. YES Go to «B5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__b5-check-harness-from-module-mating) .

B5: CHECK HARNESS FROM MODULE MATING CONNECTOR TO LIMIT SWITCH

1. Measure resistance between pins of the limit switch harness to pins of the Passive Restraint Module mating connector: Driver side--one limit switch pin to Pin 24 (ground), other limit switch pin to Pin 18. Passenger side--one limit switch pin to Pin 24 (ground), other limit switch pin to Pin 21.
2. Is continuity present? Yes Wiring OK. NO CORRECT wiring. INSTALL original passive restraint module.

C1: CHECK HARNESS AND DOOR LATCH SWITCH

1. Turn ignition to OFF (position 0).
2. Remove passive restraint module to gain access to mating connector.
3. Set Digital Volt-Ohmmeter on 200 ohm scale, use Rotunda Digital Volt-Ohmmeter 007-00001 or equivalent.
4. Measure resistance between pins of mating connector for the passive restraint module: Driver side between Pins 13 and 24. Passenger side between Pins 8 and 24.
5. Is resistance greater than 500k ohms? NO GO to «C3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__c3-check-door-ajar-latch-switch) . YES GO to «C2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__c2-check-harness-and-door-latch) .

C2: CHECK HARNESS AND DOOR LATCH SWITCH (CONTINUED)

1. With door open measure resistance.
2. Is resistance greater than 10 ohms? NO Switch and wiring OK. YES GO to «C3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__c3-check-door-ajar-latch-switch) .

C3: CHECK DOOR AJAR (LATCH) SWITCH

1. Remove door trim panel.
2. Disconnect wiring harness from door latch switch.
3. Measure resistance between switch terminal and ground (latch).
4. Fully close door.
5. Is resistance greater than 500k ohms? NO REPLACE switch. INSTALL original passive restraint module. YES Go to «C4»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__c4-check-door-ajar-latch-switch) .

C4: CHECK DOOR AJAR (LATCH) SWITCH (CONTINUED)

1. With door open measure resistance.
2. Is resistance greater than 10 ohms? NO Go to «C5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__c5-check-harness-door-ajar-latch) . YES REPLACE switch. INSTALL original passive restraint module.

C5: CHECK HARNESS DOOR AJAR (LATCH) SWITCH

1. Measure resistance between pins of the door latch switch harness to pins of the passive restraint module mating connector: Driver side--door switch harness pin to Pin 13. Passenger side--door switch harness pin to Pin 8.
2. Is continuity present? Yes Switch and wiring OK. NO CORRECT wiring concern. INSTALL original passive restraint module.

D1: CHECK SPOOL RELEASE SWITCH

1. Disconnect both switches connected in series, located at retractor release mechanism.
2. Set Digital Volt-Ohmmeter on 200 ohm scale, use Rotunda Digital Volt-Ohmmeter 007-00001 or equivalent.
3. Measure resistance across switch terminals.
4. Is resistance greater than 10 ohms? YES GO to «D2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__d2-check-release-mechanism) . NO REPLACE switch.

D2: CHECK RELEASE MECHANISM

1. When one or both release mechanism levers are in UP position, switch should be open.
2. Is resistance less than 10 ohms? YES REPLACE switch. NO Switch is OK. Connect harness to switch.

E1: CHECK LOGIC GROUND

1. Remove passive restraint module to gain access to mating connector.
2. Set Digital Volt-Ohmmeter on 200 ohm scale, use Rotunda Digital Volt-Ohmmeter 007-00001 or equivalent.
3. Measure resistance between Pin 24 of mating connector for passive restraint module to chassis ground.
4. Is continuity present? YES GO to «E2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__e2-check-motor-power-ground) . NO CORRECT wiring concern. INSTALL original passive restraint module.

E2: CHECK MOTOR POWER GROUND

1. Measure resistance between Pin 6 of mating connector for passive restraint module to chassis ground.
2. Is continuity present? YES Go to «E3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__e3-check-second-motor-power-ground) . NO CORRECT wiring. INSTALL original passive restraint module.

E3: CHECK SECOND MOTOR POWER GROUND

1. Measure resistance between Pin 19 of mating connector for passive restraint module to chassis ground.
2. Is continuity present? YES Grounds OK. NO CORRECT wiring. INSTALL original passive restraint module.

F1: CHECK B + CONNECTION BETWEEN PIN 7 AND PIN 24

1. Remove passive restraint module to gain access to mating connector.
2. Set Digital Volt-Ohmmeter on 20V scale.
3. Measure voltage on passive restraint mating connector between Pin 7 and Pin 24.
4. Is Battery voltage present? YES GO to «F2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__f2-check-b-connection-between) . NO CHECK fuse. CHECK ground. CORRECT wiring. INSTALL original passive restraint module.

F2: CHECK B + CONNECTION BETWEEN PIN 20 AND PIN 24

1. Measure voltage on passive restraint mating connector between Pin 20 and Pin 24.
2. Is Battery voltage present? YES GO to «F3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__f3-check-runstart-connection-ignition-off) . NO CHECK fuse. CHECK ground. CORRECT wiring. INSTALL original passive restraint module.

F3: CHECK RUN/START CONNECTION--IGNITION OFF

1. Measure voltage on passive restraint mating connector between Pin 25 and Pin 24 with ignition switch in OFF position.
2. Is Battery voltage present? YES CORRECT wiring. INSTALL original passive restraint module. NO Go to «F4»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__f4-check-runstart-connection-ignition-on) .

F4: CHECK RUN/START CONNECTION--IGNITION ON

1. Measure voltage on passive restraint mating connector between Pin 25 and Pin 24 with ignition switch in RUN position.
2. Is Battery voltage present? YES Go to «F5»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__f5-check-inertia-fuel-shutoff-switch) . NO CHECK fuse. CHECK ground. CORRECT wiring. INSTALL original passive restraint module.

F5: CHECK INERTIA FUEL SHUTOFF SWITCH

1. Measure voltage on passive restraint mating connector between Pin 12 and Pin 24 with ignition switch in OFF position.
2. Is Battery voltage present? YES CORRECT wiring. INSTALL original passive restraint module. NO Go to «F6»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__f6-measure-voltage) .

F6: MEASURE VOLTAGE

1. Using Rotunda Digital Volt Ohmmeter 007-00001 or an equivalent measure voltage between Pin 12 and Pin 24 with ignition switch in RUN position.
2. Is Battery voltage present? YES System OK. NO RESET inertia fuel shutoff switch and RECHECK. CHECK fuse. CHECK ground. CORRECT wiring. INSTALL original passive restraint module.

G1: BELT TO A-PILLAR

1. Remove module to gain access to passive restraint module mating connector.
2. Install jumpers in passive restraint module mating connector. Driver--Pin 2 to Pin 6 and Pin 17 to Pin 19. Passenger--Pin 9 to Pin 6 and Pin 22 to Pin 19.
3. Install temporary jumpers (motor will run while jumpers are connected). Driver--Driver--Pin 3 to Pin 7 or Pin 4 to Pin 20. Passenger--Pin 10 to Pin 7 or Pin 11 to Pin 20. Motor directs drive belt toward A-pillar GO to «G2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__g2-belt-to-b-pillar) . Motor does not run CHECK fuse. CHECK motor circuit breaker. CHECK wiring to motor. INSTALL original passive restraint module.

G2: BELT TO B-PILLAR

1. Install jumpers in mating connector. Driver--Pin 3 to Pin 6 and Pin 4 to Pin 19. Passenger--Pin 10 to Pin 6 and Pin 11 to Pin 19.
2. Install temporary jumpers (motor will run while jumpers are connected). Driver--Driver--Pin 2 to Pin 7 or Pin 17 to Pin 20. Passenger--Pin 9 to Pin 6 or Pin 22 to Pin 20. Motor runs toward B-pillar System OK. Motor does not run CHECK fuse. CHECK motor circuit breaker. CHECK wiring to motor. INSTALL original passive restraint module. GO to «G3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__g3-motor-resistance-check) .

G3: MOTOR RESISTANCE CHECK

1. Using Rotunda Digital Volt Ohmmeter 007-00001 or equivalent, measure resistance between transport motor pins. Resistance should be 0.9 to 1.5 ohms. Driver side--Pins 2 and 3. Passenger--Pins 9 and 10.
2. Is resistance within specification? Yes Motor OK. No Replace motor.

H1: CHECK FASTEN BELT INDICATOR

1. Remove module to gain access to mating connector to connect.
2. Install jumper in mating connector to connect Pin 16 to Pin 7.
3. Does FASTEN BELT indicator in instrument panel light? Yes System OK. No CHECK fuse. CHECK bulb. INSTALL original passive restraint module.

H2: CHECK CHIME WARNING

1. Place ignition key in ignition.
2. Install jumper in mating connector to connect Pin 1 to Pin 7.
3. Does Chime sound? Yes System OK. No CHECK fuse. CHECK chime module. INSTALL original passive restraint module.

H3: CHECK "PUSH LEVER DOWN" INDICATOR

1. Install jumper in mating connector to connect Pin 26 to Pin 7.
2. Does "push lever down" indicator light? Yes System OK. No CHECK fuse. CHECK bulb. INSTALL original passive restraint module.

J1: CHECK SYSTEM

1. All system switches, grounds, voltages and wiring must be correct prior to checking module.
2. Is system functional? Yes GO to «J2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__j2-check-chime-warning) . No CORRECT condition. GO to «J2»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__j2-check-chime-warning) .

J2: CHECK CHIME WARNING

1. Operate system per driver and Passenger Operational Logic Chart. see scheme 5
2. Does belt function agree with chart? Yes GO to «J3»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__j3-check-warning-function). No Replace module.

J3: CHECK WARNING FUNCTION

1. Operate warnings per the Function Table -- Warnings located in «WARNING INDICATORS FUNCTIONALITY CHECK»(/ford/tempo/i-1983-1994/remont/passive-restraints/#seat-belts-automatic__warning-indicators-functionality-check) .
2. Does warning functions agree with chart? Yes System OK. No Replace module.

Scheme 5

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

1. Disconnect negative battery cable. Remove A-pillar and B-pillar trim garnish moldings. see scheme 5through (Scheme 6). Remove plug button. (Scheme 7) Cycle the shoulder belt to the A-pillar. Remove two screws retaining drive belt track to motor, one screw adjacent to motor retaining drive belt vertical guide.
2. Disconnect drive belt track from motor allowing belt to pass by gear teeth without engagement. (Scheme 10) Remove limit switch from A-pillar bracket, screw from front A-pillar switch. Remove two screws retaining front A-pillar switch bracket to track assembly. Gently slide shoulder belt retainer forward off track. NOTE: Drive belt should slide out of track with shoulder belt retainer.
3. Remove shoulder belt retainer from drive belt.

Installation

Note. Prior to drive belt installation, lubricate track using Emralon 329 or equivalent.

1. Insert drive belt at front of track to A-pillar Install retainer into large slot at front of tape. Slide belt in track rearward until end is located approximately 12.7mm (1/2 inch) in the upper track slot.
2. Align sprocket holes in drive belt with sprocket teeth. Engage track locator on switch bracket into slot in A-pillar. Attach A-pillar track switch bracket to A-pillar and track assembly, and install limit switch.
3. Return belt anchor to the B-pillar position. Pull webbing out of retractor at console, allowing belt webbing to lay flat on the seat with no twist. Align anchor notch and install retaining bolt. Install belt attaching shoulder belt. Tighten screw to 22-32 lb-ft. (30-43 N.m.)

Note. Use screw N804772-S190 following any service to shoulder harness.

Removal

1. Disconnect negative battery cable. Remove plug button at shoulder belt retainer anchor cover. Disconnect shoulder belt anchor at retainer and remove emergency lever knobs. Remove console attaching screws, arm rest (if so equipped).
2. Disengage shoulder harness opening bezel from console, and retractor.

Scheme 11

To install reverse removal procedure.

1. Disconnect negative battery cable. Remove quarter trim panel on three-door models or B-pillar trim on 4 door or wagon. Remove drive belt track retaining screws from motor and one screw from vertical drive belt guide adjacent to motor. Slide drive belt track down and out of the way for motor removal and disconnect electrical connectors.
2. Remove hex nuts from motor mounting bracket studs.

For installation, reverse removal procedure.

1. disconnect negative battery cable. Remove instrument panel, steering column opening cover, and reinforcement.
2. Remove module mounting bracket located on vertical brace to right of steering column. Disconnect module connector. Remove module from bracket.

Scheme 12

1. disconnect negative battery cable. Remove instrument panel, steering column opening cover, and reinforcement.
2. Remove module mounting bracket located on a horizontal brace to the left of the steering column. Disconnect module connector. Remove module from bracket.

Scheme 13

WIRING DIAGRAM

Note. For detailed wiring diagrams, see appropriate WIRING DIAGRAMS article.

See also:
• MANUAL OVERRIDE SYSTEM
• A2
• A3
• A4
• A5
• B2
• B3
• B4
• B5
• C3
• C2
• C4
• C5
• D2
• E2
• E3
• F2
• F3
• F4
• F5
• F6
• G2
• G3
• J2
• J3
• WARNING INDICATORS FUNCTIONALITY CHECK