Automatic Transmission Shift Interlock Systems Acura Integra III

SHIFT INTERLOCK SYSTEM (ALL MODELS)

Note. Transmission Control Module (TCM) or Powertrain Control Module (PCM) is used on some models.

Shift interlock system prevents shift lever from being moved from Park unless brake pedal is depressed and accelerator pedal is in idle position. In case of a malfunction, shift lever can be released by placing ignition key in key release slot near shift lever and pushing down. Voltage is provided to shift lock solenoid when ignition is on.

When brake pedal is depressed, battery voltage is applied to the PCM/TCM from brakelight switch. With accelerator pedal in idle position, voltage is applied to the PCM/TCM from the throttle position sensor. The PCM/TCM then supplies voltage to shift lock circuit in the interlock control unit. When A/T gear position switch is in Park position, interlock control unit operates shift lock solenoid by controlling the ground circuit. When shift lock solenoid is energized, shift lever is released and can be moved.

Shift lock solenoid is located on side of shift lever. A/T gear position switch is located either on side of shift lever or on side of transaxle control shaft. Interlock control unit is located behind left side of dash, near steering column.

KEY INTERLOCK SYSTEM (ALL MODELS)

Key interlock system prevents ignition key from being removed from ignition lock assembly unless shift lever is in Park. When ignition key is in ignition lock assembly, key interlock switch closes, providing voltage to key interlock solenoid and interlock control unit.

If shift lever is not in Park (parking pin switch on), interlock control unit energizes key interlock solenoid by completing ground circuit. When key interlock solenoid is energized, ignition key cannot be removed from ignition lock assembly. Key interlock switch and key interlock solenoid are located on ignition lock assembly. (Scheme 22) Parking pin switch is located on bottom of shift lever. Interlock control unit is located behind left side of dash, near steering column.

Scheme 22

SHIFT & KEY INTERLOCK SYSTEMS (EXCEPT ACURA 3.5RL, HONDA ACCORD (1998) & PRELUDE)

Note. For system testing, refer to appropriate wiring diagram when checking component wiring. See WIRING DIAGRAMS . To check individual components, see COMPONENT TESTING .

1. To check system operation, ensure shift lever is in Park. Turn ignition on. Depress brake pedal with accelerator pedal in idle position. If shift lock solenoid clicks, system is working properly. If shift lock solenoid fails to click, go to next step.
2. See appropriate INTERLOCK CONTROL UNIT test under «COMPONENT TESTING»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems__component-testing) . If shift lever cannot be moved from Park, check A/T gear position switch. See A/T GEAR POSITION SWITCH in appropriate ELECTRONIC CONTROLS article.

Acura 3.5RL

Note. Shift interlock system is controlled by driver's multiplex system, located behind driver's door panel.

1. Turn ignition on. Depress brake pedal. If brakelights are on, go to next step. If brakelights are not on, repair faulty brake switch circuit.
2. Turn ignition off. Disconnect PCM harness connectors "A" and "E". PCM is located under carpet on right front footwell. Depress brake pedal. Check voltage between PCM harness connector "E" terminal No. 2 (Green/White wire) and harness connector "A" terminal No. 26 (Brown/Black wire). If battery voltage is present, go to next step. If battery voltage is not present, repair open in circuit between brake switch and PCM harness connector "E" terminal No. 2 (Green/White wire). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
3. Reconnect PCM harness connectors. Disconnect driver's multiplex control unit harness connectors "A" (26-pin) and "B" (16-pin). Turn ignition on. Depress brake pedal. Check voltage between ground and driver's multiplex control unit harness connector "A" terminal No. 26 (White/Green wire). If battery voltage is present, go to step 5 . If battery voltage is not present, go to next step.
4. Check open or short in circuit between multiplex control unit harness connector "A" terminal No. 26 (White/Green wire) and PCM harness connector "E" terminal No. 22 (White/Green wire). Repair as necessary. If circuit is okay, check for loose PCM connectors. Repair as necessary. If PCM connectors are okay, substitute with a known-good PCM and retest system. If symptom or problem goes away, replace original PCM.
5. Ensure shift lever is in Park. Check voltage between body ground and multiplex control unit harness connector "B" terminal No. 2 (Black/Blue wire). If voltage is not present, go to next step. If voltage is present, repair open in circuit between multiplex control unit harness connector "B" terminal No. 2 (Black/Blue wire) and A/T gear position switch.
6. Turn ignition off. Disconnect shift lock solenoid harness connector. Check continuity between multiplex control unit harness connector "B" terminal No. 10 (Green wire) and shift lock solenoid harness connector terminal No. 2 (Green wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between multiplex control unit and shift lock solenoid. CAUTION: DO NOT connect battery voltage to shift lock solenoid connector terminal No. 2 (Green wire) or diode inside shift lock solenoid will be damaged.
7. Connect battery voltage to shift lock solenoid connector terminal No. 1 (Black/Yellow wire). Connect shift lock solenoid connector terminal No. 2 (Green wire) to battery negative terminal. If shift lock solenoid operates properly, go to next step. If shift lock solenoid does not operate properly, replace shift lock solenoid.
8. Check for loose driver's multiplex control unit connectors. Repair as necessary. If connectors are okay, substitute with a known-good driver's multiplex control unit. If problem or symptom goes away, replace original driver's multiplex control unit.

Honda Accord (1998)

1. Depress brake pedal. Check brakelights. If brakelights are on, go to next step. If brakelights are not on, repair brakelight circuit.
2. Turn ignition on. Move gear selector to Park. Depress brake pedal and release accelerator pedal. Check voltage between ground and PCM 32-pin harness connector "A" terminal No. 28 (White/Red wire). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . If battery voltage is present, go to next step. If battery voltage is not present, go to step 4 .
3. Check for open or short in circuit between PCM harness connector "A" terminal No. 28 (White/Red wire) and driver's multiplex control unit. Repair as necessary. If circuit is okay, check for loose terminal connection at driver's multiplex control unit. Repair as necessary. If connections are okay, substitute with a known-good driver's multiplex control unit and recheck system. If symptom or problem goes away, replace original driver's multiplex control unit.
4. Turn ignition off. Disconnect PCM 25-pin harness connector "B". Depress brake pedal. Check voltage between PCM harness connector "A" terminal No. 32 (Brown/Black wire) and harness connector "B" terminal No. 20 (Brown/Black wire) or terminal No. 22 (Brown/Black wire). If battery voltage is present, go to next step. If battery voltage is not present, repair open in circuit between PCM harness connector "A" terminal No. 32 (Brown/Black wire) and brake switch. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
5. Turn ignition on. Check voltage between PCM 31-pin harness connector "C" terminal No. 27 (Red/Black wire) and PCM harness connector "B" terminal No. 20 (Brown/Black wire) or terminal No. 22 (Brown/Black wire). If about .5 volt is present, go to step 9 . If about .5 volt is not present, go to next step.
6. Turn ignition off. Disconnect TP sensor harness connector. Check continuity between TP sensor harness connector terminal No. 1 (Green/Black wire) and PCM harness connector "B" terminal No. 20 (Green/Black wire) or terminal No. 22 (Brown/Black wire). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . If continuity exists, check for faulty TP sensor or adjustment. If continuity does not exist, go to next step.
7. Check continuity between PCM harness connector "C" terminal No. 18 (Green/Black wire) and PCM harness connector "B" terminal No. 20 (Brown/Black wire) or terminal No. 22 (Brown/Black wire). If continuity does not exist, go to next step. If continuity exists, repair open in circuit between PCM harness connector "C" terminal No. 18 (Green/Black wire) and TP sensor. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
8. Check for loose PCM connectors. Repair as necessary. If connectors are okay, substitute with a known-good PCM and recheck system. If symptom or problem goes away, replace original PCM.
9. Turn ignition off. Disconnect shift lock solenoid harness connector. Check continuity between shift lock solenoid harness connector terminal No. 2 (Green wire) and driver's multiplex harness connector terminal No. 22 (Green wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between driver's multiplex control unit terminal No. 22 (Green wire) and shift lock solenoid.
10. Turn ignition on. Check voltage between body ground and shift solenoid harness connector terminal No. 1 (Yellow wire). If battery voltage is present, go to next step. If battery voltage is not present, check for blown fuse No. 9 (7.5-amp) in underdash fuse/relay box. Replace as necessary. If fuse is okay, repair open or short in circuit between shift lock solenoid harness connector terminal No. 1 (Yellow wire) and underdash fuse/relay box. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . CAUTION: DO NOT connect battery voltage to shift lock solenoid connector terminal No. 2 (Green wire) or diode inside shift lock solenoid will be damaged.
11. Connect battery voltage to shift lock solenoid harness connector terminal No. 1 (Yellow wire). Connect ground to shift lock solenoid harness connector terminal No. 2 (Green wire). Shift lock solenoid should click. If solenoid operates properly, go to next step. If solenoid does not operate properly, replace shift lock solenoid.
12. Check for loose connectors at driver's multiplex control unit. Repair as necessary. If connectors are okay, substitute with a known-good driver's multiplex control unit and recheck system. If symptom or problem goes away, replace driver's multiplex control unit.

Honda Prelude

Note. Shift interlock system is controlled by passenger's multiplex control unit, located behind right kick panel.

1. Ensure Malfunction Indicator Light (MIL) is not illuminated. If MIL is illuminated, diagnose PGM-FI system first. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. Turn ignition on. Depress brake pedal. Check if brakelights are on. If brakelights are on, go to next step. If brakelights are not on, repair brakelight circuit.
2. Turn ignition off. Disconnect Transmission Control Module (TCM) harness connectors "A" (26-pin) and "B" (22-pin). TCM is located under carpet on right front footwell, next to ECM. Depress brake pedal. Check voltage between TCM harness connector "B" terminal No. 12 (White/Black wire) and harness connector "A" terminal No. 13 (Brown/Black wire) or No. 26 (Brown/Black wire). If battery voltage is present, go to step 4 . If battery voltage is not present, go to next step.
3. Repair open in circuit between TCM harness connector "B" terminal No. 12 (White/Black wire) and brake switch. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
4. Reconnect TCM harness connectors "A" and "B". Disconnect passenger's multiplex control unit 20-pin harness connector. Turn ignition on. Depress brake pedal. Check voltage between passenger's multiplex control unit harness connector terminals No. 13 (White/Green wire) and No. 14 (Black wire). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . If battery voltage is present, go to step 6 . If battery voltage is not present, go to next step.
5. Check for open or short in circuit between passenger's multiplex control unit harness connector terminals No. 13 or 14 and TCM harness connector "A" terminal No. 22 (White/Green wire). Repair as necessary. If circuit is okay, check for poor ground or loose TCM connectors. Repair as necessary. If ground or connectors are okay, substitute with a known-good TCM and recheck system. If symptom or problem goes away, replace original TCM.
6. Check voltage between passenger's multiplex control unit harness connector terminals No. 14 (Black wire) and No. 16 (Black/Blue wire). If voltage is present, go to next step. If voltage is not present, go to step 8 .
7. Repair open in circuit between passenger's multiplex control unit harness connector terminal No. 16 (Black/Blue wire) and A/T gear position switch. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems)
8. Disconnect shift lock solenoid harness connector. Turn ignition on. Check voltage between body ground and shift lock solenoid harness connector terminal No. 1 (Green/Yellow wire). If battery voltage is not present, go to next step. If battery voltage is present, go to step 10 .
9. Check fuse No. 18 (7.5-amp), located in underdash fuse/relay box. Replace fuse as necessary. If fuse is okay, repair open in Yellow/Red wire between shift lock solenoid connector and underdash fuse/relay box. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
10. Turn ignition off. Check for continuity between passenger's multiplex control unit harness connector terminal No. 15 (Green/Yellow wire) and shift lock solenoid harness connector terminal No. 2 (Green/Yellow wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between passenger's multiplex control unit and shift lock solenoid. CAUTION: DO NOT connect battery voltage to shift lock solenoid connector terminal No. 2 (Green/Yellow wire) or diode inside shift lock solenoid will be damaged.
11. Connect battery voltage to shift lock solenoid harness connector terminal No. 1 (Yellow/Red wire). Connect battery ground to shift lock solenoid harness connector terminal No. 2 (Green/Yellow wire). Check shift lock solenoid operation. If shift lock solenoid operates properly, go to next step. If shift lock solenoid does not operate properly, replace shift lock solenoid.
12. Check for loose passenger's multiplex control unit connectors. Repair as necessary. If connectors are okay, substitute with a known-good passenger's multiplex control unit and recheck system. If symptom or problem goes away, replace original passenger's multiplex control unit.

1. Turn ignition off. Disconnect 8-pin ignition switch harness connector, located near lower steering column. Connect ignition switch harness connector terminal No. 5 (Black/Red wire) to battery positive terminal. Connect harness connector terminal No. 4 (White/Red wire) to battery negative terminal. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . A clicking sound should be heard from key interlock solenoid. If interlock solenoid operates properly, go to next step. If interlock solenoid does not operate properly, replace ignition key cylinder/steering lock assembly.
2. Connect ignition switch harness connector terminal No. 8 (White/Green wire) to battery positive terminal. Connect harness connector terminal No. 4 (White/Red wire). Turn ignition switch to ACC position, then push it in. A clicking sound should be heard when ignition key is pushed in. If key interlock solenoid operates properly, go to next step. If key interlock solenoid does not operate properly, replace ignition key cylinder/steering lock assembly.
3. Disconnect driver's multiplex control unit harness connectors "A" (26-pin) and "B" (16-pin). Check for continuity between body ground and multiplex control unit harness connector "A" terminal No. 2 (Black/Red wire). Check for continuity between body ground and multiplex control unit harness connector "A" terminal No. 13 (White/Red wire). If continuity exists, repair short in circuit between affected harness connector terminal and ignition switch connector. If continuity does not exist, go to next step.
4. Check continuity between body ground and driver's multiplex control unit harness connector "B" terminal No. 5 (White/Black wire). If continuity does not exist, go to next step. If continuity exists, check for short in circuit between multiplex control unit harness connector "B" terminal No. 5 (White/Black wire) and parking pin switch. If circuit is okay, check or replace parking pin switch.
5. Turn ignition on. Check voltage between body ground and driver's multiplex control unit harness connector "B" terminal No. 2 (Black/Blue wire). If voltage is not present, go to next step. If voltage is present, repair open in circuit between multiplex control unit harness connector "B" terminal No. 2 (Black/Blue wire) and A/T gear position switch. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
6. Check for loose driver's multiplex control unit connectors. Repair as necessary. If connectors are okay, substitute with a known-good driver's multiplex control unit and recheck systems. If symptom or problem goes away, replace original driver's multiplex control unit.

1. Turn ignition off. Disconnect 7-pin key interlock switch harness connector, located near lower steering column.
2. Connect interlock switch harness connector terminal No. 7 (White/Yellow wire) to battery positive terminal. Connect harness connector terminal No. 5 (White/Red wire) to battery negative terminal. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . Turn ignition switch to ACC position. Push in on ignition key. A clicking sound should be heard from key interlock solenoid. If interlock solenoid operates properly, go to next step. If interlock solenoid does not operate properly, replace ignition key cylinder/steering lock assembly.
3. Check voltage between body ground and interlock switch harness connector terminal No. 7 (White/Yellow wire). If battery voltage is present, go to next step. If battery voltage is not present, check for blown fuse No. 47 (20-amp) in underhood fuse/relay box. Replace as necessary. If fuse is okay, repair open in circuit between ignition switch harness connector No. 7 (White/Yellow wire) and underhood fuse/relay box. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
4. Disconnect parking pin switch harness connector. Parking pin switch is located on front side of shift lever. Place gear shift lever in Park. Check continuity between parking pin switch harness connector terminals No. 3 (Black wire) and No. 4 (White/Red wire). If continuity exists, go to next step. If continuity does not exist, check for open in circuit between parking pin switch and 4-pin harness connector. Repair as necessary. If circuit is okay, replace parking pin switch.
5. Check continuity between parking pin switch harness connector terminal No. 5 (White/Red wire) and interlock switch harness connector terminal No. 4 (White/Red wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between parking pin switch and interlock switch connector.
6. Check continuity between body ground and parking pin switch harness connector terminal No. 3 (Black wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between parking pin harness connector terminal No. 3 (Black wire) and ground connector. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
7. Check for loose key interlock switch connector and parking pin switch connector. Repair as necessary. If connectors are okay, substitute with a known-good steering lock assembly and recheck system. If symptom or problem foes away, replace steering lock assembly.

1. Disconnect steering lock assembly harness connector, located on lower steering column. Connect battery voltage to steering lock assembly harness connector terminal No. 5 (White/Yellow wire) and connect battery ground to harness connector terminal No. 3 (White/Red wire). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . Turn ignition key to ACC position, then push in on key. A clicking sound should be heard from key interlock solenoid while pushing in on key and no clicking sound should be heard when releasing ignition key. If key interlock solenoid and switch operates properly, go to next step. If key interlock solenoid or switch does not operate properly, replace ignition key/cylinder lock assembly.
2. Reconnect steering lock assembly harness connector. Disconnect mode switch (located below center console) 8-pin harness connector. Turn ignition to ACC position. Check voltage between body ground and mode switch harness connector terminal No. 8 (White/Red wire) while pushing in ignition key. If voltage is present, go to next step. If voltage is not present, repair open in circuit between mode switch harness connector terminal No. 8 (White/Red wire) and steering lock assembly connector. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
3. Check for continuity between body ground and mode switch harness connector terminal No. 3 (Black wire). If continuity exists, replace faulty mode/parking pin switch assembly. If continuity does not exist, repair open in circuit between mode switch harness connector terminal No. 3 (Black wire) and ground connector.

1. Turn ignition on. Check if D4 indicator light on instrument panel is blinking. If D4 indicator light is blinking, diagnose A/T electronic control system. See appropriate ELECTRONIC CONTROLS article. If "D4" indicator light is not blinking, go to next step.
2. Check voltage between passenger's multiplex control unit harness connector terminals No. 14 (Black wire) and No. 16 (Black/Blue wire). If voltage is not present, go to next step. If voltage is present, repair open in circuit between multiplex control unit harness connector terminal No. 16 (Black/Blue wire) and A/T gear position switch. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems)
3. Turn ignition off. Disconnect passenger's multiplex control unit harness connector. Turn ignition on. Move shift lever to "N" position. Check voltage between passenger's multiplex control unit harness connector terminals No. 14 (Black wire) and No. 15 (Green/Yellow wire). If voltage is present, go to next step. If voltage is not present, go to step 5 .
4. Repair open in circuit between passenger's multiplex control unit harness connector terminal No. 15 (Green/Yellow wire) and A/T gear position switch, and shift lock relay. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) .
5. Turn ignition off. Disconnect shift lock solenoid harness connector. Check continuity between passenger's multiplex control unit harness connector terminal No. 15 (Green/Yellow wire) and shift lock solenoid harness connector terminal No. 2 (Green/Yellow wire). If continuity exists, go to next step. If continuity does not exist, repair open in circuit between multiplex control unit harness connector terminal No. 15 (Green/Yellow wire) and shift lock solenoid. CAUTION: DO NOT connect battery voltage to shift lock solenoid connector terminal No. 2 (Green/Yellow wire) or diode inside shift lock solenoid will be damaged.
6. Connect battery voltage to shift lock solenoid connector terminal No. 1 (Yellow/Red wire). Connect battery ground to shift lock solenoid connector terminal No. 2 (Green/Yellow wire). Check shift lock solenoid operation. If shift lock solenoid operates properly, go to next step. If shift lock solenoid does not operate properly, replace shift lock solenoid.
7. Check for loose passenger's multiplex control unit harness connectors. Repair as necessary. If connectors are okay, substitute with a known-good passenger's multiplex control unit and recheck system. If symptom or problem goes away, replace original passenger's multiplex control unit.

COMPONENT TESTING

Except Acura 3.5RL, Honda Accord (1998) & Prelude

1. Remove lower panel from instrument panel. Disconnect interlock control unit harness connector. Interlock control unit is located behind left side of dash, near steering column or instrument panel. Inspect terminals for poor connection, corrosion or bending. Repair as necessary.
2. Using DVOM, check for continuity or voltage between specified terminals or body ground. (Scheme 23), (Scheme 24), (Scheme 25), (Scheme 26), (Scheme 27), (Scheme 28), (Scheme 29) or (Scheme 30). See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems). Repair circuit as necessary and recheck system. If circuit is okay, go to next step.
3. Substitute with a known-good interlock control unit and recheck system. If symptom or problem goes away, replace original interlock control unit.

Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

Scheme 29

Scheme 30

Acura 3.5RL & Honda Accord (1998)

Shift interlock system is controlled by driver's multiplex system and is located behind driver's door panel. For diagnosis, see SYSTEM TESTING .

Prelude

Shift interlock system is controlled by passenger's multiplex system and is located behind right kick panel. For diagnosis, see SYSTEM TESTING .

Except Honda Accord (1998)

1. Remove lower cover and knee bolster from left side of dash for access to steering lock harness connector, located near lower steering column. Disconnect ignition switch harness connector from main wiring harness.
2. Using a DVOM, check for continuity between designated terminals with ignition lock assembly in ACC position. See «KEY INTERLOCK SOLENOID CONTINUITY SPECIFICATIONS (ACURA)»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) or «KEY INTERLOCK SOLENOID CONTINUITY SPECIFICATIONS (HONDA)»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) table.
3. If continuity is as specified, go to next step. If continuity is not as specified, replace ignition lock assembly. Key interlock solenoid cannot be serviced separately.
4. Connect ground and battery voltage to appropriate harness connector terminals to check key interlock solenoid activation. See «KEY INTERLOCK SOLENOID ACTIVATION TEST (ACURA)»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) or «KEY INTERLOCK SOLENOID ACTIVATION TEST (HONDA)»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) table. For terminal wire color identification, see «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . Ensure ignition key cannot be removed with battery voltage applied.
5. If ignition key cannot be removed, key interlock solenoid is okay. If ignition key can be removed, replace ignition lock assembly. Key interlock solenoid cannot be serviced separately.

KEY INTERLOCK SOLENOID CONTINUITY SPECIFICATIONS (ACURA)

KEY INTERLOCK SOLENOID CONTINUITY SPECIFICATIONS (HONDA)

KEY INTERLOCK SOLENOID ACTIVATION TEST (ACURA)

KEY INTERLOCK SOLENOID ACTIVATION TEST (HONDA)

1. Remove left side lower dash cover. Disconnect 7-pin harness connector from steering lock assembly, located on lower right of steering column.
2. Connect a DVOM between ignition harness connector terminals No. 5 (White/Red wire) and No. 7 (White/Yellow wire). Turn ignition key to ACC position. Push in on ignition key. Continuity should exist. Release ignition key. Continuity should not exist. If continuity is as specified, go to next step. If continuity is not as specified, replace ignition/steering lock assembly.
3. Apply battery voltage to ignition harness connector terminal No. 7 (White/Yellow wire) and ground to terminal No. 3 (Black wire). If ignition key can be removed, key interlock solenoid is okay. If ignition can be removed, replace steering lock assembly. Key interlock cannot be serviced separately.

Acura

1. Remove center console. Disconnect shift lock solenoid harness connector. Note connector terminals and wire colors. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . CAUTION: Battery voltage must be applied to correct shift lock solenoid terminal or diode inside shift lock solenoid will be damaged.
2. On Integra, connect positive battery voltage to shift lock solenoid terminal "A" (Yellow/Blue wire) and momentarily connect solenoid terminal "B" (Yellow/Black wire). On all other models, connect positive battery voltage to shift lock solenoid terminal No. 1 (Yellow or Black/Yellow wire) and momentarily connect solenoid terminal No. 3 (Green wire) to ground. On all models, note that shift lock releases when release lever is pushed and locks when release lever is released. Replace shift lock solenoid if solenoid does not operate properly.

Honda

1. Remove center console. Disconnect shift lock solenoid harness connector. Note connector terminals and wire colors. See «WIRING DIAGRAMS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems) . CAUTION: Battery voltage must be applied to correct shift lock solenoid terminal or diode inside shift lock solenoid will be damaged.
2. On Accord (1997) and Civic Del Sol, connect positive battery voltage to shift lock solenoid terminal "A" (Yellow wire) and momentarily connect solenoid terminal "B" (Green or Yellow/Black wire) to ground. On Accord (1998), Civic, CR-V, Odyssey and Prelude, connect positive battery voltage to shift lock solenoid terminal No. 1 (Yellow or Yellow/Red wire) and momentarily connect solenoid terminal No. 2 (Yellow/Black, Green/Yellow or Green wire) to ground. On all models, note that shift lock releases when release lever is pushed and locks when release lever is released. Replace shift lock solenoid if solenoid does not operate properly.

Except Honda Accord (1998), Civic & Prelude

1. Turn ignition off. Remove center console. Disconnect parking pin switch 2-pin harness connector, located near shift lock solenoid harness connector.
2. Ensure shift lever is in Park. Using a DVOM, connect DVOM to parking pin switch 2-pin harness connector terminals. Push shift lever button. Continuity should exist. Release shift lever button. Continuity should not exist. If continuity is not as specified, replace parking pin switch.

Honda Accord (1998) & Civic

1. Turn ignition off. Remove center console. Disconnect parking pin switch 4-pin harness connector, located near shift lock solenoid harness connector.
2. Ensure shift lever is in Park. Using a DVOM, connect DVOM to parking pin switch harness connector terminals No. 3 (Black wire) and No. 4 (White/Black wire). Push shift lever button. Continuity should exist. Release shift lever button. Continuity should not exist. If continuity is not as specified, replace parking pin switch.

1. Turn ignition off. Remove center console. Disconnect mode switch 8-pin harness connector. Move shift lever in "P" position. Continuity should exist between mode switch harness connector terminals No. 3 (Black/White wire) and No. 8 (White/Black wire). Move shift lever out of "P" position. Continuity should not exist.
2. If continuity is not as specified, replace faulty A/T gear position/mode/pin switch assembly.

REMOVAL & INSTALLATION

Note. Honda Civic shift lock solenoid removal and installation procedures are not available from manufacturer.

1. Remove center console. Disconnect harness connector at shift lock solenoid. Remove solenoid pin from shift lock solenoid. Remove mounting nuts and shift lock solenoid.
2. To install, apply silicone grease to shift lock solenoid mating surfaces with shift lock extension. Install shift lock solenoid with NEW nuts snugly installed. Install pin, collar and harness connector.
3. Turn ignition on. Depress brake pedal with accelerator pedal released. With shift lock solenoid energized (ON position), ensure clearance between top of shift lock lever and lock pin groove is.145-.185" (3.7-4.7 mm). (Scheme 31) Tighten mounting nuts to specifications. See «TORQUE SPECIFICATIONS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems__torque-specifications).
4. Turn ignition off and release brake pedal. Ensure lock pin is blocked by shift lock lever. (Scheme 31) Check solenoid operation several times to ensure proper operation.

Scheme 31

1. Remove center console. Disconnect harness connector at shift lock solenoid. Remove gear shift knob. Remove lock nuts and through bolts, then remove A/T gear position panel. Remove mounting bolts and shift lock solenoid.
2. To install, reverse removal procedure. Ensure there is clearance between stop pin and base bracket when solenoid is on and off. (Scheme 32) Tighten A/T gear position panel through bolt nut. Tighten shift lock solenoid mounting bolts to specifications. See «TORQUE SPECIFICATIONS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems__torque-specifications).

Scheme 32

1. Remove center console. Disconnect harness connector at shift lock solenoid. Remove solenoid pin from shift lock solenoid. Remove mounting nuts and shift lock solenoid.
2. To install, on Acura Integra, apply silicone grease to shift lock solenoid mating surfaces with shift lock extension. On all models, install shift lock solenoid with NEW nuts snugly installed. Install pin, collar and harness connector.
3. Turn ignition on. With shift lock solenoid energized (ON position), ensure clearance between top rear of shift lock lever and lock pin groove is.078-.118" (2.0-3.0 mm). (Scheme 33) Tighten mounting nuts to specifications. See «TORQUE SPECIFICATIONS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems__torque-specifications).
4. Turn ignition off. Ensure lock pin is blocked by shift lock lever. (Scheme 33) Check solenoid operation several times to ensure proper operation.

Scheme 33

1. Turn ignition off. Remove instrument panel lower cover. Remove upper and lower steering column cover.
2. Remove flange nuts and bolts securing steering column. Lower steering column. Disconnect shift lock solenoid and parking pin switch harness connectors. Remove shift lever assembly. Remove shift lock solenoid mounting screws. Remove shift lock solenoid.
3. To install, align shift lock solenoid plunger joint with tip of shift lock extension. Install and tighten solenoid mounting screws to specifications. See «TORQUE SPECIFICATIONS»(/acura/integra/iii-1993-2001/remont/automatic-trans/#automatic-transmission-shift-interlock-systems__torque-specifications) . Check shift lever operation and shift lock operation.

1. Turn ignition off. Remove lower steering column cover. Disconnect shift lock solenoid harness connector. Remove spring clip securing shift lock solenoid. Remove shift lock solenoid.
2. To install, reverse removal procedure. Align shift lock solenoid plunger joint with tip of shift lock extension. Check that shift lock stop does not protrude when shift lock solenoid is on. Ensure shift lock protrudes more than 0.30" (7.5 mm) when solenoid is off.

1. Remove center console. Disconnect shift lock solenoid harness connector. Using a screwdriver, pry shift lock solenoid clamp, then remove shift lock solenoid.
2. To install, align shift lock solenoid joint with tip of shift lock stop. Secure shift lock solenoid with clamp.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

See also:
• WIRING DIAGRAMS
• COMPONENT TESTING
• TORQUE SPECIFICATIONS