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Cruise Control System Nissan Stanza II

Cruise Control Systems 9 illustrations ~2580 words

DESCRIPTION

The cruise control system is a combined unit of electronic and vacuum operated components. Turbocharged models use a vacuum pump to ensure adequate supply of vacuum for system. System operates at speed range of 30-78 MPH.

MAIN SWITCH

When switch is turned on, Green light will illuminate to indicate system is operational.

"SET" SWITCH

This switch has an "ON-OFF" type circuit. When switch is depressed, Blue "CRUISE" light illuminates. With switch depressed, control unit cancels preset vehicle speed.

"ACCEL/RESUME" SWITCH

This switch is designed to increase set speed, or return it to that speed at which vehicle was previously being driven before set speed was canceled.

CONTROL UNIT

Control unit compares set speed with actual vehicle speed, and maintains preset speed by regulating current flow to a solenoid valve.

BRAKE & STOPLIGHT SWITCHES

Stoplight switch cuts off power to cruise control circuit when brake pedal is depressed. In addition to activating brake lights, the stoplight switch sends a signal to control unit to override cruise control system.

CLUTCH SWITCH

On manual transmission models, a clutch switch is used to cut off power to cruise control circuit when clutch is depressed.

INHIBITOR RELAY

On automatic transmission models, inhibitor relay is used to release cruise control system when transmission is placed in "Neutral" or "Park" position.

Maxima & 200SX

Before adjusting cruise control cable, ensure throttle cable is properly adjusted. Tighten adjusting nut until dog ear of throttle lever meets stopping plate, then back off adjusting nut, 1/2 to one turn. Do not twist or overtighten wire during adjustment procedure. Tighten lock nut securely.

Scheme 1

Scheme 1: Maxima & 200SX
Scheme 1: Maxima & 200SX

300ZX

Without depressing accelerator pedal, tighten adjusting nut until cable has 0-.02" (0-.5 mm) of available freeplay. (Scheme 2) Tighten lock-nut. Do not over tighten cable.

Scheme 2

Scheme 2: 300ZX
Scheme 2: 300ZX

Stanza & Stanza Wagon

Adjust accelerator pedal cable. Without depressing accelerator pedal, tighten adjusting nut until actuator cable has no freeplay. (Scheme 3) Tighten lock-nut. Do not over tighten cable.

Scheme 3

Scheme 3: Stanza & Stanza Wagon
Scheme 3: Stanza & Stanza Wagon

Pickup & Pathfinder

Check adjustment of accelerator pedal cable and adjust if necessary. Turn adjusting nut 1/2 to one turn toward covered cable wire. (Scheme 4) Tighten lock-nut. Do not over tighten cable.

Scheme 4

Scheme 4: Pickup & Pathfinder
Scheme 4: Pickup & Pathfinder

Van

Check adjustment of accelerator pedal cable and adjust if necessary. Turn adjusting nut 1/2 to one turn from throttle open start position to loosened wire direction. (Scheme 5) Tighten lock-nut. Do not over tighten cable.

Scheme 5

Scheme 5: Van
Scheme 5: Van

BRAKE & CLUTCH SWITCHES

On all models, brake switch, clutch switch (if equipped) and stoplight switch are all adjusted in same manner. Loosen lock nut and turn adjusting nut until clearance between tip of switch and pedal is .012-.04" (.3-1 mm).

All Models

  1. Remove control unit with connector intact. Release all pressure from brakes and clutch. Turn ignition on. Turn cruise control main switch to "ON" position.
  2. On all models except Stanza and Stanza Wagon models, check voltage from harness side of control unit, between terminals No. 5 and 13. (Scheme 6) Voltage should be about 12 volts.
  3. On Stanza and Stanza Wagon models, check voltage between terminals No. 5 and 14. Voltage should be about 12 volts. (Scheme 3)

Scheme 6

Scheme 6
Scheme 6

Scheme 7

Scheme 7
Scheme 7

SET SWITCH CIRCUIT TEST

Turn ignition off. Push "SET" switch inward. On all models except Maxima, check continuity from harness side of set switch connector between terminals No. 1 and 14. On Maxima, check continuity from harness side between terminals No. 1 and 13. If continuity is present set switch is okay.

All Models with Analog Gauges

Turn ignition off. Disconnect speedometer cable from transmission. On all models connect an ohmmeter between terminals No. 5 and 10 from harness side of speed sensor connector. On 200SX and 300ZX models only, turn ignition on. Slowly rotate speedometer cable pinion by hand to ensure deflection of ohmmeter. Ohmmeter should deflect twice per rotation of speedometer pinion.

300ZX with Digital Gauges

Note. If speedometer is functioning properly, this test is not necessary. Proceed to SPEEDOMETER CIRCUIT TEST

Remove cluster lid. Connect voltmeter between terminal No. 1 and No. 11 on combination meter side. Combination meter harness should remain connected to instrument harness. Turn ignition off and then on. Voltmeter should read about 5 volts. If voltmeter reads no voltage, check for power to cruise control unit. Turn ignition off. Disconnect speedometer cable from speed sensor and remove speed sensor with harness connected.

Disconnect combination meter harness from instrument harness and connect a voltmeter between terminals No. 1 and No. 12. Turn ignition off and then on. Slowly rotate speed sensor rotor shaft with screwdriver to ensure deflection of voltmeter. DO NOT turn rotor shaft quickly, as voltmeter deflects 24 times per revolution of rotor shaft. If voltmeter does not deflect, replace speed sensor.

Maxima & 200SX with Digital Gauges

Remove combination meter with harness connected. Disconnect speedometer cable from speed sensor and remove speed sensor with harness connected. Connect a voltmeter between terminals No. 8 and 15 on combination meter control unit. Turn ignition on. Slowly rotate speed sensor rotor shaft with screwdriver to ensure deflection of voltmeter. DO NOT turn rotor shaft quickly, as voltmeter deflects 24 times per revolution of rotor shaft.

Remove combination meter with harness connected. Disconnect speedometer cable from speed sensor and remove speed sensor with harness connected. Remove cluster lid. Connect a voltmeter between terminals No. 1 and 15 on combination meter harness side. Turn ignition off and then on. Slowly rotate speed sensor rotor shaft with screwdriver to ensure deflection of voltmeter. Voltmeter should deflect twice per rotation of speedometer pinion. If ohmmeter does not deflect, proceed to SPEED SENSOR CIRCUIT TEST .

Maxima with Digital Gauges

Remove combination meter with harness connected. Disconnect speedometer cable from speed sensor and remove speed sensor with harness connected. Connect a voltmeter between terminals No. 9 and 15 on combination meter control unit. Turn ignition on. Slowly rotate speed sensor rotor shaft with screwdriver to ensure deflection of voltmeter. Voltmeter should deflect twice per rotation of speedometer pinion.

RESUME SWITCH CIRCUIT TEST

Turn ignition off. Turn resume switch to "ON" position. From harness side of resume switch connector, check for continuity between 2 terminals. Check for continuity between terminals No. 2 and 14. Continuity should be present to ensure switch is good.

ACCELERATE SWITCH CIRCUIT TEST

Turn ignition off. Turn accelerate switch to "ON" position. From harness side of switch connector, ensure continuity is present between terminals No. 3 and 14. Continuity should be present to ensure switch is good.

Stanza & Stanza Wagons

Turn ignition on. Turn main switch to "ON" position. Depress brake pedal. Measure voltage between terminals No. 5 and 13. Depress clutch pedal (M/T) or shift in "Neutral" range (A/T). Measure voltage between terminals No. 5 and No. 13. Voltage should read about 12 volts.

Turn ignition on. Turn main switch to "ON" position. Apply and hold pressure to brake pedal. Measure voltage from harness side of connector between terminals No. 5 and 9. Voltage reading should be about 12 volts.

OVERDRIVE CANCEL CIRCUIT FOR AUTOMATIC TRANSMISSION TEST

Turn ignition on. Turn overdrive cancel switch to "OFF" position. On 300ZX, measure voltage between terminals No. 5 and No. 8. Also measure voltage between terminals No. 5 and No. 16. On Maxima, Pickup, Pathfinder, 200SX and Van models, measure voltage between terminals No. 5 and 8 only. Voltage reading for all models should be about 12 volts. If no continuity is present, check wiring between overdrive cancel solenoid, overdrive cancel switch and cruise control unit.

Turn ignition off. Turn overdrive cancel switch to "OFF" position. Check for continuity between terminals No. 5 and 8. If no continuity is present, check wiring between overdrive lock-up control unit and cruise control unit.

Maxima, Pickup, Pathfinder, 200SX, 300ZX & Van

Check for continuity at actuator connector between terminals No. 1 and No. 2, No. 3 and No. 4. If continuity is present, connect a 12-volt power source to harness connector of actuator and apply vacuum to actuator nipple. If actuator moves smoothly, actuator is good. If actuator does not move smoothly, repair or replace actuator.

  1. Disconnect actuator harness connector from main harness. Apply 12 volts to terminals No. 4 and No. 6 to ensure motor runs. (Scheme 7) If motor does not run, replace actuator. Measure resistance between terminals No. 4 and No. 5. Resistance reading should be zero.
  2. Apply 12 volts to terminals No. 1 and No. 2, at the same time measure resistance between terminals No. 4 and No. 5. Resistance reading should be infinite. If resistance reading is not infinite, replace actuator.
  3. Apply 12 volts to terminals No. 4 and No. 6 to start motor. After motor has operated for about 30 seconds, measure resistance between terminals No. 4 and No. 5. (Scheme 7) Resistance should be zero. If resistance reading is not zero, replace actuator.
  4. Ensure actuator cable is working properly by applying 12 volts between terminals No. 1 and No. 3 and also terminals No. 1 and No. 4 while using terminal No. 2 as a ground. (Scheme 7) If actuator is okay, cable should move smoothly. If cable does not move smoothly, replace actuator.
  5. Disconnect ground lead from terminal No. 2. If cable does not return to its original position within 50-60 seconds, replace actuator. Disconnect wire from terminal No. 3. Cable should return immediately. If cable does not return immediately, replace actuator.

Scheme 8

Scheme 8
Scheme 8

Turbo Models Only

Disconnect harness from vacuum pump. Using an ohmmeter, measure continuity across terminals. If continuity is not present, replace vacuum pump.

  1. Disconnect harness from vacuum reservoir tank. Remove vacuum pump-to-vacuum tank hose at vacuum pump and connect hand vacuum pump.
  2. Using an ohmmeter, ensure continuity is present across vacuum tank harness terminals. Apply 11.5 in. Hg vacuum to vacuum tank. Continuity should not exist. Replace switch as necessary

Scheme 9

Scheme 9
Scheme 9
  1. Turn ignition off and then on. Turn cruise control main switch to "ON" position. Ensure indicator light illuminates. If not, check main switch and relay. Check for loose or disconnected vacuum hoses.
  2. Check power supply to control unit connector. See «POWER SUPPLY CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If power supply is okay, check set switch circuit for proper operation. If power supply is not okay, check stop switch, clutch switch (M/T), inhibitor relay and inhibitor switch (A/T). If switches are good, check wire harness in power supply circuit. See «SET SWITCH CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system__set-switch-circuit-test) .
  3. If set switch operation is okay, proceed to «ACTUATOR PERFORMANCE TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If switch operation is not okay, check set switch, wire harness between control unit and set switch. If actuator operation is okay, perform «SPEED SENSOR CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If actuator operation is not okay, replace actuator.
  4. If speed sensor operation is okay, replace cruise control unit. If speed sensor operation is not okay, check wire harness between control unit and speed sensor signal output terminal of speedometer. On digital type gauges, check speedometer operation.
  5. If speedometer does not operate, replace speed sensor. Check speedometer output. If output is good, check wire harness between control unit and speed sensor signal output terminal of speedometer.

RESUME SWITCH DOES NOT OPERATE

Perform a RESUME SWITCH CIRCUIT TEST . If switch checks out okay, replace cruise control unit. If switch test does not check out okay, repair or replace resume switch.

ACCELERATE SWITCH DOES NOT OPERATE

Perform an ACCELERATE SWITCH CIRCUIT TEST . If accelerator circuit test checks out okay, replace cruise control unit. If accelerator circuit does not check out okay, repair or replace accelerator switch.

ENGINE SURGES

Check all vacuum hoses for looseness, cracks or disconnection. Ensure actuator wire is working properly. If wire is okay, perform ACTUATOR PERFORMANCE TEST . If actuator is okay, replace cruise control unit. If actuator does not check out okay, replace actuator.

VARIATION BETWEEN "SET" SPEED & ACTUAL VEHICLE SPEED

Inspect operation of actuator and actuator wire. Check all related vacuum lines for looseness, cracks or disconnection. Perform ACTUATOR PERFORMANCE TEST . If actuator is okay, replace cruise control unit. If actuator does not check out okay, replace actuator.

Automatic Transmission

Verify overdrive cancel circuit is operating properly through control unit. If not, check wiring, overdrive cancel solenoid, overdrive control switch and cruise control unit. If okay, perform OVERDRIVE CANCEL CIRCUIT FOR AUTOMATIC TRANSMISSION TEST . If overdrive cancel switch checks out okay, replace cruise control unit.

  1. Turn ignition on. Turn cruise control main switch to "OFF" and then to "ON" position. Ensure indicator light illuminates. If not, check bulb, main switch and relay. Check power supply to control unit connector.
  2. See «POWER SUPPLY CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If power supply is not okay, check power supply wire harness. If power supply is okay, perform a «CUT-OFF CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If cut-off circuit is not okay, check stop switch, clutch switch (M/T), inhibitor relay and inhibitor switch (A/T).
  3. If cut-off circuit is okay, check set switch circuit for proper operation. See «SET SWITCH CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system__set-switch-circuit-test) . If set switch circuit is not okay, inspect set switch and wire harness between control unit and set switch. If set switch operation is okay, perform «SPEED SENSOR CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) .
  4. If speed sensor does not check out okay, check speed sensor and wire harness between control unit and speed sensor signal output terminal of speedometer.
  5. If speed sensor is okay, perform «ACTUATOR PERFORMANCE TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If actuator is not okay, replace actuator. If actuator is okay, replace cruise control unit.
  1. Perform «CUT-OFF CIRCUIT TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If cut-off circuit does not check out okay, inspect stop switch, clutch switch (M/T), inhibitor relay and inhibitor switch (A/T). If cut-off circuit is okay, perform STOP LIGHT CIRCUIT TEST.
  2. If stop light circuit does not check out okay, check stop light switch and power supply wire harness. If stop light circuit is okay, perform «ACTUATOR PERFORMANCE TEST»(/nissan/stanza/ii-1986-1989/remont/cruise-control-systems/#cruise-control-system) . If actuator performance test does not check out okay, replace actuator. If actuator circuit is okay, replace cruise control unit.

CRUISE CONTROL CABLE

Disconnect cable from actuator. Remove screw attaching cable bracket. Remove rubber boots. Loosen lock nut and remove cable from torsion shaft. To install cable, reverse removal procedure and adjust.

ACTUATOR

  1. Disconnect negative battery cable. Disconnect cable from actuator. Disconnect harness connector (Pickup, Pathfinder, 200SX and 300ZX), and vacuum hoses. Remove actuator attaching bolt.
  2. On Maxima, remove actuator with apply and release solenoid valves from vehicle. Disconnect vacuum hose and remove apply and release solenoid valves. On all other models, remove actuator. To install, reverse removal procedure.

Disconnect negative battery cable. Push out switch from behind instrument panel or from below console. Disconnect harness connector. To install, reverse removal procedure.

STOPLIGHT SWITCH, BRAKE & CLUTCH SWITCHES

Disconnect negative battery cable. Remove instrument panel left lower cover and floor assist nozzle, if required. Loosen lock nut and remove switch. To install, reverse removal procedure.

Disconnect negative battery cable. On Pickup and Pathfinder, control unit is located under drivers seat. On Stanza, control unit is located on right side of steering column under instrument panel. On Maxima, control unit is located under center console in front of shifter.

On 300ZX and 200SX, control unit is located at left kick panel. On Van, control unit is located at left panel behind drivers seat. Remove control unit mounting hardware. Remove control unit and disconnect harness connector. To install, reverse removal procedure.

WIRING DIAGRAMS

For wiring diagrams, see appropriate WIRING DIAGRAMS article in the WIRING DIAGRAMS Section.