ENINE CONTROL (RZ-FE, RZ-FE) SYSTEM OUTLINE THE ENINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENINE, TRANSMISSION, ETC. AN OUTLINE OF ENINE CONTROL IS IVEN HERE.. INPUT SINAL () ENINE COOLANT TEMP. SINAL SYSTEM THE ENINE COOLANT TEMP. SENSOR DETECTS THE ENINE COOLANT TEMP. AND HAS A UILT-IN THERMISTOR ITH A RESISTANCE HICH VARIES ACCORDIN TO THE ATER TEMP. THUS THE ATER TEMP. IS INPUT IN THE FORM OF A CONTROL SINAL TO TERMINAL TH OF THE ENINE CONTROL MODULE. () INTAKE AIR TEMP. SINAL SYSTEM THE INTAKE AIR TEMP. SENSOR DETECTS THE INTAKE AIR TEMP., HICH IS INPUT AS A CONTROL SINAL TO TERMINAL THA OF THE ENINE CONTROL MODULE. () HEATED OXYEN SENSOR SINAL SYSTEM THE OXYEN DENSITY IN THE EXHAUST EMISSIONS IS DETECTED AND INPUT AS A CONTROL SINAL TO TERMINAL OX OR OX OF THE ENINE CONTROL MODULE. TO MAINTAIN STALE DETECTION PERFORMANCE Y THE HEATED OXYEN SENSOR, A HEATER IS USED FOR ARMIN THE SENSOR. THE HEATER IS ALSO CONTROLLED Y THE ENINE CONTROL MODULE (HT OR HT). (4) RPM SINAL SYSTEM CRANKSHAFT POSITION AND ENINE RPM ARE DETECTED Y THE PICK-UP COIL INSIDE THE DISTRIUTOR, THEN CRANKSHAFT POSITION AND RPM IS INPUT TO TERMINALS NE AND NE-. () THROTTLE SINAL SYSTEM THE THROTTLE POSITION SENSOR DETECTS THE THROTTLE VALVE OPENIN ANLE, HICH IS INPUT AS A CONTROL SINAL TO TERMINAL VTA OF THE ENINE CONTROL MODULE, OR HEN THE VALVE IS FULLY CLOSED, TO TERMINAL IDL. (6) VEHICLE SPEED SINAL SYSTEM THE VEHICLE SPEED SENSOR, INSTALLED INSIDE THE COMINATION METER, DETECTS THE VEHICLE SPEED AND INPUTS A CONTROL SINAL TO TERMINAL SP OF THE ENINE CONTROL MODULE. (7) A/C S SINAL SYSTEM THE OPERATIN VOLTAE OF THE A/C MANETIC CLUTCH IS DETECTED AND INPUT IN THE FORM OF A CONTROL SINAL TO TERMINAL AC OF THE ENINE CONTROL MODULE. (8) ATTERY SINAL SYSTEM VOLTAE IS CONSTANTLY APPLIED TO TERMINAL ATT OF THE ENINE CONTROL MODULE. HEN THE INITION S IS TURNED TO ON, VOLTAE FOR ENINE CONTROL MODULE OPERATION IS APPLIED VIA THE EFI RELAY TO TERMINAL + OF THE ENINE CONTROL MODULE. (9) INTAKE AIR VOLUME SINAL SYSTEM INTAKE AIR VOLUME IS DETECTED Y THE MASS AIR FLO METER AND A SINAL IS INPUT INTO TERMINAL V OF THE ENINE CONTROL MODULE AS A CONTROL SINAL. (0) STOP LIHT S SINAL SYSTEM THE STOP LIHT S IS USED TO DETECT HETHER OR NOT THE VEHICLE IS AKIN AND THE INFORMATION IS INPUT AS A CONTROL SINAL TO TERMINAL K OF THE ENINE CONTROL MODULE. () STA SINAL SYSTEM TO CONFIRM THAT THE ENINE IS CRANKIN, THE VOLTAE APPLIED TO THE STARTER MOTOR DURIN CRANKIN IS DETECTED AND IS INPUT AS A CONTROL SINAL TO TERMINAL STA OF THE ENINE CONTROL MODULE. () ENINE KNOCK SINAL SYSTEM ENINE KNOCKIN IS DETECTED Y THE KNOCK SENSOR AND INPUT AS A CONTROL SINAL TO TERMINAL KNK OF THE ENINE CONTROL MODULE. 7
. CONTROL SYSTEM * MFI SYSTEM THE MFI SYSTEM MONITORS THE ENINE CONDITIONS THROUH THE SINALS EACH SENSOR (INPUT SINALS ( TO )) INPUTS TO THE ENINE CONTROL MODULE. ASED ON THIS DATA AND THE PRORAM MEMORIZED IN THE ENINE CONTROL MODULE, THE MOST APPROPRIATE FUEL INJECTION TIMIN IS DECIDED AND CURRENT IS OUTPUT TO TERMINALS #0, AND #0 OF THE ENINE CONTROL MODULE, CAUSIN THE INJECTORS TO OPERATE (TO INJECT FUEL). IT IS THIS SYSTEM HICH, THROUH THE ORK OF THE ENINE CONTROL MODULE, FINELY CONTROLS FUEL INJECTION IN RESPONSE TO DRIVIN CONDITIONS. * ESA (ELECTRONIC SPARK ADVANCE) SYSTEM THE ESA SYSTEM MONITORS THE ENINE CONDITIONS USIN THE SINALS (INPUT SINALS (, 4, TO 7, 9,, )) INPUT TO THE ENINE CONTROL MODULE FROM EACH SENSOR. ASED ON THIS DATA AND THE PRORAM MEMORIZED IN THE ENINE CONTROL MODULE, THE MOST APPROPRIATE INITION TIMIN IS DECIDED AND CURRENT IS OUTPUT TO TERMINAL IT OF THE ENINE CONTROL MODULE. THIS OUTPUT CONTROLS THE INITER TO PRODUCE THE MOST APPROPRIATE INITION TIMIN FOR THE DRIVIN CONDITIONS. * HEATED OXYEN SENSOR HEATER CONTROL SYSTEM THE HEATED OXYEN SENSOR HEATER CONTROL SYSTEM TURNS THE HEATER TO ON HEN THE INTAKE AIR VOLUME IS LO (TEMP. OF EXHAUST EMISSIONS LO), AND ARMS UP THE HEATED OXYEN SENSOR TO IMPROVE DETECTION PERFORMANCE OF THE SENSOR. THE ENINE CONTROL MODULE EVALUATES THE SINALS FROM EACH SENSOR (INPUT SINALS (, 4, 8, 9, )), CURRENT IS OUTPUT TO TERMINAL HT OR HT AND CONTROLS THE HEATER. * ER CUT CONTROL SYSTEM THE ER CUT CONTROL SYSTEM CONTROLS THE VSV (ER) Y EVALUATIN THE SINALS FROM EACH SENSOR INPUT TO THE ENINE CONTROL MODULE (INPUT SINALS (, 9)) AND Y SENDIN OUTPUT TO TERMINAL ER OF THE ENINE CONTROL MODULE.. DIANOSIS SYSTEM ITH THE DIANOSIS SYSTEM, HEN THERE IS A MALFUNCTION IN THE ECU SINAL SYSTEM, THE MALFUNCTIONIN SYSTEM IS RECORDED IN THE MEMORY. THE MALFUNCTIONIN SYSTEM CAN THEN E FOUND Y READIN THE DISPLAY (CODE) OF THE MALFUNCTION INDICATOR LAMP. 4. FAIL-SAFE SYSTEM HEN A MALFUNCTION OCCURS IN ANY SYSTEM, IF THERE IS A POSSIILITY OF ENINE TROULE EIN CAUSED Y CONTINUED CONTROL ASED ON THE SINALS FROM THAT SYSTEM, THE FAIL-SAFE SYSTEM EITHER CONTROLS THE SYSTEM Y USIN DATA (STANDARD VALUES) RECORDED IN THE ENINE CONTROL MODULE MEMORY OR ELSE STOPS THE ENINE. THE ENINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENINE, TRANSMISSION, ETC. AN OUTLINE OF ENINE CONTROL IS IVEN HERE. 7
ENINE CONTROL (RZ-FE, RZ-FE) R I 6 R 7 IF R I 4 7 I4 INITION S AM AM ACC I ST I ST 6 R STARTER RELAY E 7 R F F 7.A IN EFI RELAY 6 IF Y R E 40A AM 80A ALT 0A AM 7. A STA IF C 6 CIRCUIT OPENIN RELAY 4 (*4) 9 L N E 7 IF E 4 E E IF V 4 (*) VSV (EVAP) V 9 (*) E 4 E E J JUNCTION CONNECTOR 6 F (*) F 7 FUEL PUMP 6 4 (*) (*) (*) ATTERY 9 F L VSV (VAPOR PRESSURE SENSOR) M N 6 IK (*4) EA ID 74
R 8 IK R FROM POER SOURCE SYSTEM (SEE PAE 0) (*) 4 (* ) T THROTTLE POSITION SENSOR * : RZ FE * : RZ FE * : RZ FE A/T *4 : RZ FE M/T, RZ FE * : / CRUISE CONTROL *6 : /O CRUISE CONTROL *7 : RZ FE *8 : RZ FE Y Y Y IF A EFI I0 Y Y Y L FROM CRUISE CONTROL ECU Y L Y L I0 E ENINE COOLANT TEMP. SENSOR R I0 I0 I0 A 4 9 7 0 (*4) D D F 0 F F 4 F 4 F 9 F F 8 (* ) ATT NS VCC VTA IDL TH TH E THA PTNK E ER AS TEMP. SENSOR P I INTAKE AIR TEMP. SENSOR Y I0 R Y (*) (*) (* ) V 8 VAPOR PRESSURE SENSOR E A, D, E 6 E, E 7, F, E 8 C, ENINE CONTROL MODULE PR(*) + E V TPC EVP(* ) RSC RSO ER SP A 6 C C 9 C 0 C 6 C 9 A D F F E E 6 7 8 D (* 4) (* ) (*) (*) R R M MASS AIR FLO METER (*) (*) V 4 VSV (EVAP) R (*) (*) I IDLE AIR CONTROL VALVE R V VSV(ER) P I0 A C0, C VEHICLE SPEED SENSOR [C OM. METER ] 7 6 O 0 E E A (*) O (*) O (*6) (* ) 6 IK IK (* ) I0 I0 I0 (* ) (* 4) (*4) D 0 D ID 7
ENINE CONTROL (RZ-FE, RZ-FE) R E R FROM POER SOURCE SYSTEM (SEE PAE 0) R R R R R E E 7 E 7 R R R A A/C AMPLIFIER A STOP 0A AUE I 6 INJECTOR NO. I0 I 8 INJECTOR NO. I 7 INJECTOR NO. I0 I 9 INJECTOR NO. 4 8 L C C 8 A 0 A 0 A A (*4) 6 D 7 D D 4 D (* ) L Y IJ IJ L L Y #0 #0 ACT AC K 0 IF S STOP LIHT S 4 C C C0 MALFUNCTION INDICATOR LAMP [COM. METER] 7 9 O V O STA L4 4D TFN TE ENINE CONTROL MODULE OX HT 4 A A A 6 C (* 4) 4 D 0 0 D D 7 F F (* ) P 6 D D FC E A, D, E 6 E, E 7, F, E 8 C, (*) (*4) R V TO DETECTION S D DATA LINK CONNECTOR 8 TE + E 4 H HEATED OXYEN SENSOR (ANK SENSOR ) I0 (* ) (* 4) I0 76
R I0 R FROM POER SOURCE SYSTEM (SEE PAE 0) I INITER R 4 TO TACHOMETER [COM. METER] D 6 DISTRIUTOR 4 C + R NE L (* 7) C CRANKSHAFT POSITION SENSOR NE I0 R NE E I0 * : RZ FE * : RZ FE * : RZ FE A/T *4 : RZ FE M/T, RZ FE * : / CRUISE CONTROL *6 : /O CRUISE CONTROL *7 : RZ FE A/T *8 : RZ FE, RZ FE M/T 0A OD V IF Y L Y L (* 8) C 0 C C 8 C 7 C 4 C 7 A (* 4 ) 7 E E 6 E E 9 D (* ) (*7) I0 S 6 IF I T NE NE SDL SDL ATT D 7 DATA LINK CONNECTOR I 9 4 C OX HT KNK E EO EO EO E A, D, E 6 E, E 7, F, E 8 C, ENINE CONTROL MODULE C 4 C C 6 C C 6 IK I0 4 I0 I0 V F 6 6 F 4 6 (* 4) (* ) R I0 7 F H 4 HEATED OXYEN SENSOR (ANK SENSOR ) K KNOCK SENSOR I0 IK 9 F I0 E ID 77
ENINE CONTROL (RZ-FE, RZ-FE) SERVICE HINTS EFI RELAY () - () : CLOSED ITH INITION S AT ON OR ST POSITION C 6 CIRCUIT OPENIN RELAY - : CLOSED ITH STARTER RUNNIN I 6, I 7, I 8, I 9 INJECTOR - :.4-4. Ω T THROTTLE POSITION SENSOR -4 : 0.-0.8 KΩ ITH CLEARANCE ETEEN LEVER AND STOP SCRE 0 MM (0 IN.) -4 :. KΩ OR LESS ITH CLEARANCE ETEEN LEVER AND STOP SCRE 0.0 MM (0.097 IN.) INFINITY ITH CLEARANCE ETEEN LEVER AND STOP SCRE 0.77 MM (0.00 IN.) -4 :.-0 KΩ ITH THROTTLE VALVE FULLY OPEN -4 : 4-9 KΩ E ENINE COOLANT TEMP. SENSOR - : 0-0 KΩ (-0 C, -4 F) 4-7 KΩ (0 C, F) - KΩ (0 C, 68 F) 0.9-. KΩ (40 C, 04 F) 0.4-0.7 KΩ (60 C 40 F) 0.-0.4 KΩ (80 C, 76 F) E (A), (D), E 6 (E), E 7 (), (F), E 8 (C), () ENINE CONTROL MODULE VOLTAE AT ENINE CONTROL MODULE IRIN CONNECTORS + -E : 9-4 VOLTS (INITION S ON) ATT -E : 9-4 VOLTS (ALAYS) VCC -E : 4.-. VOLTS (INITION S ON) IDL -E : 9-4 VOLTS (INITION S ON AND THROTTLE VALVE OPEN) VTA -E : 0.-0.8 VOLTS (INITION S ON AND THROTTLE VALVE FULLY CLOSED).-4.9 VOLTS (INITION S ON AND THROTTLE VALVE FULLY OPEN) IT -E : PULSE ENERATION (CRANKIN OR IDLIN) STA -E : 6 VOLTS OR MORE (INITION S AT ST POSITION) #0, #0-E : 9-4 VOLTS (INITION S ON) -E : 9-4 VOLTS (NO TROULE AND ENINE RUNNIN) THA -E : 0.-.4 VOLTS (INITION S ON AND INTAKE AIR TEMP. 0 C, 68 F) TH -E : 0.-.0 VOLTS (INITION S ON AND COOLANT TEMP. 80 C, 76 F) SP -E : PULSE ENERATION ITH VEHICLE MOVIN K -E : 7.-4 VOLTS (STOP LIHT S ON) RESISTANCE AT ECU IRIN CONNECTOR (DISCONNECT IRIN CONNECTOR) IDL -E : INFINITY (THROTTLE VALVE OPEN) 0-00 Ω (THROTTLE VALVE FULLY CLOSED) VTA -E :.-0 KΩ (THROTTLE VALVE FULLY OPEN) 0.-0.8 KΩ (THROTTLE VALVE FULLY CLOSED) THA -E : - KΩ (INTAKE AIR TEMP. 0 C, 68 F) TH -E : 0.-0.4 KΩ (COOLANT TEMP. 80 C, 78 F) + -E : 0.-0.4 KΩ NE -E : 40-80 Ω 78
: PARTS LOCATION CODE SEE PAE CODE SEE PAE CODE SEE PAE A 8 9 I 7 C 6 E7 F 9 I4 9 C 6 8 C 9 J 7 C0 8 E8 9 K 7 C A 8 F 7 0 M 7 D 6 H 6 S 9 D 6 6 H 4 6 T 7 D 7 8 I 7 V 7 E 6 I 7 V 4 7 E 6 I 6 7 V 8 7 A 9 I 7 7 V 9 7 E D 9 I 8 7 E 6 E 6 I 9 7 : RELAY LOCKS CODE SEE PAE RELAY LOCKS (RELAY LOCK LOCATION) 9 R/ NO. (ENINE COMPARTMENT LEFT) : JUNCTION LOCK AND IRE HARNESS CONNECTOR CODE SEE PAE JUNCTION LOCK AND IRE HARNESS (CONNECTOR LOCATION) 0 COL IRE AND J/ NO. (LEFT KICK PANEL) F 0 ENINE ROOM MAIN IRE AND J/ NO. (LEFT KICK PANEL) C D E COL IRE AND J/ NO. (EHIND THE INSTRUMENT PANEL CENTER) F : CONNECTOR JOININ IRE HARNESS AND IRE HARNESS CODE SEE PAE JOININ IRE HARNESS AND IRE HARNESS (CONNECTOR LOCATION) EC 4 (RZ-FE, RZ-FE) ENINE ROOM MAIN IRE AND ENINE ROOM NO. IRE (LEFT FENDER) IF 6 ENINE ROOM MAIN IRE AND COL IRE (LEFT KICK PANEL) IJ 6 COL IRE AND A/C SU IRE (EHIND THE LOVE OX) IK IK 6 ENINE IRE AND COL IRE (RIHT KICK PANEL) N 8 FRAME IRE AND COL IRE (UNDER THE DRIVER S SEAT) : ROUND POINTS CODE SEE PAE ROUND POINTS LOCATION EA 4 (RZ-FE, RZ-FE) FRONT LEFT FENDER E 4 (RZ-FE, RZ-FE) NEAR THE THROTTLE ODY ID 6 LEFT KICK PANEL : SPLICE POINTS CODE SEE PAE IRE HARNESS ITH SPLICE POINTS CODE SEE PAE IRE HARNESS ITH SPLICE POINTS E I 4 E 4 (RZ-FE, RZ-FE) ENINE ROOM MAIN IRE I 6 6 COL IRE E I 9 4 (RZ-FE, RZ-FE) ENINE IRE E 7 I0 6 ENINE IRE 79
80 ENINE CONTROL (RZ-FE, RZ-FE)
* : RZ FE A/T *4 : RZ FE M/T, RZ FE 8