TERMINALS OF ECM; 2008 MY TUN... Last Modified: 3 8 2013 6.4 U Doc ID: RM000000PDH05CX Model Year: 2008 Model: Tundra Prod Date Range: [10/2007 ] Title: 3UR FE ENGINE CONTROL SYSTEM: SFI SYSTEM: TERMINALS OF ECM; 2008 MY Tundra [10/2007 ] TERMINALS OF ECM 1. CHECK ECM (a) Measure the voltage according to the value(s) in the table below. The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the column. The illustration above can be used as a reference to identify the ECM terminal locations. A24 1 (ATT) L attery (for measuring battery voltage and for ECM memory) Always 11 to 14 D74 41 (+M) P Power source of throttle actuator Always 11 to 14 A24 28 (IGSW) LG Ignition switch 11 to 14 A24 3 (+) GR Power source of ECM 11 to 14 A24 2 (+2) GR Power source of ECM 11 to 14 D74 58 (OC1+) D74 57 (OC1 ) L Camshaft timing oil control valve (OC) (for Intake Side of ank 1) 1) http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 1/17
D74 52 (OC2+) D74 51 (OC2 ) L R Camshaft timing oil control valve (OC) (for Intake Side of ank 2) 1) D74 56 (OE1+) D74 55 (OE1 ) L W L Camshaft timing oil control valve (OC) (for Exhaust Side of ank 1) 1) D74 50 (OE2+) D74 49 (OE2 ) L R L Camshaft timing oil control valve (OC) (for Exhaust Side of ank 2) 1) A24 34 (MREL) W EFI relay 11 to 14 D74 74 (G) D74 75 (E2G) L Y G W Mass air flow meter, Shift lever position P or N, A/C switch OFF 0.5 to 3.0 D74 73 (THA) D74 97 (ETHW) Y Intake air temperature sensor, Intake air temperature 20 C (68 F) 0.5 to 3.4 D74 76 (THW) D74 98 (ETHA) G Engine coolant temperature sensor, Engine coolant temperature 80 C (176 F) 0.2 to 1.0 D74 80 (CTA) D74 79 (ETA) Y L Power source of throttle position sensor (specific voltage) 4.5 to 5.5 D74 78 (TA1) D74 79 (ETA) R Y L Throttle position sensor (for engine control), Throttle valve fully closed, Throttle valve fully open 0.5 to 1.2 3.2 to 4.8 D74 77 (TA2) D74 79 (ETA) Y L Throttle position sensor (for sensor malfunction detection), Throttle valve fully closed, Throttle valve fully open 2.1 to 3.1 4.5 to 5.5 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 2/17
A24 55 (PA) A24 58 (EPA) W O Accelerator pedal position sensor (for engine control), Accelerator pedal released, Accelerator pedal fully depressed 0.5 to 1.1 2.6 to 4.5 A24 56 (PA2) A24 60 (EPA2) LG Accelerator pedal position sensor (for sensor malfunctioning detection), Accelerator pedal released, Accelerator pedal fully depressed 1.2 to 2.0 3.4 to 5.3 A24 57 (CPA) A24 58 (EPA) O Power source of accelerator pedal position sensor (for PA) 4.5 to 5.5 A24 59 (CP2) A24 60 (EPA2) Power source of accelerator pedal position sensor (for PA2) 4.5 to 5.5 D74 22 (HA1A) D74 23 (E04) L W A/F sensor heater elow 3.0 11 to 14 D74 20 (HA2A) D74 21 (E05) G W A/F sensor heater elow 3.0 11 to 14 D74 126 (A1A+) G A/F sensor 3.3 * D74 125 (A1A ) R A/F sensor 2.9 * D74 103 (A2A+) P A/F sensor 3.3 * D74 102 (A2A ) L A/F sensor 2.9 * D74 45 (HT1) D74 46 (E03) G W Heated oxygen sensor heater elow 3.0 11 to 14 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 3/17
D74 44 (HT2) D74 46 (E03) W Heated oxygen sensor heater elow 3.0 11 to 14 D74 114 (OX1) D74 115 (EX1) G L Heated oxygen sensor Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor 2) D74 112 (OX2) D74 113 (EX2) R W Heated oxygen sensor Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor 2) 11 to 14 D74 86 (#10) D74 43 (E01) R L W Injector 3) 11 to 14 D74 109 (#20) D74 43 (E01) L W Injector 3) 11 to 14 D74 85 (#30) D74 43 (E01) R W Injector 3) 11 to 14 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 4/17
D74 108 (#40) Y W D74 43 Terminal (E01) No. Injector 3) 11 to 14 D74 84 (#50) D74 43 (E01) G W Injector 3) 11 to 14 D74 107 (#60) D74 43 (E01) R W Injector 3) 11 to 14 D74 83 (#70) D74 43 (E01) W W Injector 3) 11 to 14 D74 106 (#80) D74 43 (E01) R W Injector 3) D74 94 (KNK1) D74 93 (EKNK) R G Knock sensor Engine speed maintained at 4000 rpm after warming up engine 4) http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 5/17
D74 117 (KNK2) D74 116 (EKN2) W Knock sensor Engine speed maintained at 4000 rpm after warming up engine 4) D74 96 (KNK3) D74 95 (EKN3) W Knock sensor Engine speed maintained at 4000 rpm after warming up engine 4) D74 119 (KNK4) D74 118 (EKN4) R G Knock sensor Engine speed maintained at 4000 rpm after warming up engine 4) D74 92 (1+) D74 91 (1 ) R G ariable valve timing (T) sensor (for Intake Side of ank 1) 5) D74 87 (2+) D74 88 (2 ) R Y ariable valve timing (T) sensor (for Intake Side for ank 2) 5) D74 69 (E1+) D74 68 (E1 ) R L ariable valve timing (T) sensor (for Exhaust Side of ank 1) 1 D74 64 (E2+) D74 65 (E2 ) R L ariable valve timing (T) sensor (for Exhaust Side of ank 2) 1 D74 110 (NE+) D74 111 (NE ) W Y Crankshaft position sensor 5) http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 6/17
D74 40 (IGT1) Y Ignition coil (ignition signal) D74 33 (IGT2) L Y Ignition coil (ignition signal) D74 37 (IGT3) Ignition coil (ignition signal) D74 34 (IGT4) L Ignition coil (ignition signal) D74 35 (IGT5) G R Ignition coil (ignition signal) D74 36 (IGT G Ignition coil (ignition signal) D74 38 (IGT7) G W Ignition coil (ignition signal) D74 39 (IGT8) G Ignition coil (ignition signal) http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 7/17
4.5 to 5.5 D74 104 (IGF1) G Ignition coil (ignition confirmation signal) 4.5 to 5.5 D74 105 (IGF2) R Ignition coil (ignition confirmation signal) 11 to 14 D74 63 (PRG) L Purge S 7) A24 13 (SPD) Speed signal from combination meter Driving at 20 km/h (12 mph) 8) A24 46 (STA) R Starter signal Cranking 5.5 or more D74 120 (NSW) L Park / neutral position switch, Shift lever position other than P and N, Shift lever position in P or N 11 to 14 elow 3.0 rake pedal depressed 7.5 to 14 A24 36 (STP) LG Stop light switch rake pedal released elow 1.5 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 8/17
A24 35 (ST1 ) R Stop light switch (opposite to STP terminal), rake pedal depressed, rake pedal released elow 1.5 7.5 to 14 D74 19 (M+) D74 82 (ME01) R W Throttle actuator with warm engine 9) D74 18 (M ) D74 82 (ME01) G W Throttle actuator with warm engine 10) A24 48 (FC) L Fuel pump control 11 to 14 A24 52 (FPC) O Fuel pump control elow 1.5 A24 24 (W) P MIL elow 3.0 11 to 14 A24 16 (TC) R Terminal TC of DLC3 11 to 14 A24 15 (TACH) W Engine speed 11) A24 30 (PMP) ent valve (built into canister pump module) 11 to 14 A24 49 (MPMP) G Leak detection pump (built into canister pump module) Leak detection pump OFF elow 3.0 Leak detection pump ON 11 to 14 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&stm... 9/17
D74 67 (C1) D74 97 (ETHW) L Power source for sensor (specific voltage) 4.5 to 5.5 D74 66 (C2) D74 97 (ETHW) L Power source for sensor (specific voltage) 4.5 to 5.5 D74 121 (PPMP) D74 97 (ETHW) P Canister pressure sensor (built into canister pump module) 3.3 to 4.0 D74 32 (ALT) R Generator 11 to 14 A24 10 (CANH) GR CAN communication line 12) A24 11 (CANL) W CAN communication line 13) D74 62 (ACIS) L Y S for ACIS (Acoustic Control Induction System) operation signal 11 to 14 D74 28 (AIR) Air switching valve for secondary air injection system 11 to 14 D74 54 (AIRP) P Air pump control 11 to 14 D74 30 (AIDI) G Diagnostic information signal for air injection system Air injection system operates 15) A24 54 (AIP) D74 98 (ETHA) Y Secondary air injection system pressure signal 3.0 to 3.6 A24 43 (AR2) Air switching valve for secondary air injection system 11 to 14 D74 53 (ARP2) P L Air pump control 11 to 14 http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 10/17
D74 29 (AID2) G Y Diagnostic information signal for air injection system Air injection system operates 15) A24 53 (AIP2) D74 97 (ETHW) G Secondary air injection system pressure signal 3.0 to 3.6 D74 90 (G2) D74 89 (G2 ) R Camshaft position sensor 14) A24 18 (DI) L Fuel pump control 0 to 3.0 A24 14 (STSW) Starter switch Shift lever position P or N, Cranking 6.0 or more A24 41 (ACCR) ACC relay control signal Cranking 11 to 14 elow 1 D74 16 (STAR) L Starter relay control Cranking elow 1.5 5.5 or more D74 72 (PSP) G Power steering oil pressure sensor 0.5 to 4.5 *: The ECM terminal voltage is constant regardless of the output voltage from the sensor. (b) WAEFORM 1: Camshaft timing oil control valve (OC) Tool Setting D74 58 (OC1+) D74 57 (OC1 ) 5 /DI., 1 msec./di. D74 52 (OC2+) D74 51 (OC2 ) 5 /DI., 1 msec./di. http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 11/17
Tool Setting D74 56 (OE1+) D74 55 (OE1 ) 5 /DI., 1 msec./di. D74 50 (OE2+) D74 49 (OE2 ) 5 /DI., 1 msec./di. (c) WAEFORM 2: Heated oxygen sensor Tool Setting D74 114 (OX1) D74 115 (EX1) 0.2 /DI., 200 msec./di. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor D74 112 (OX2) D74 113 (EX2) 0.2 /DI., 200 msec./di. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor In DATA LIST, item O2S 1 S2 shows the ECM input values from the heated oxygen sensor. (d) WAEFORM 3: Injector No. 1 (to No. 8) injection signal Tool Setting D74 86 (#10) D74 43 (E01) 20 /DI., 20 msec./di. D74 109 (#20) D74 43 (E01) 20 /DI., 20 msec./di. D74 85 (#30) D74 43 (E01) 20 /DI., 20 msec./di. D74 108 (#40) D74 43 (E01) 20 /DI., 20 msec./di. D74 84 (#50) D74 43 (E01) 20 /DI., 20 msec./di. D74 107 (#60) D74 43 (E01) 20 /DI., 20 msec./di. D74 83 (#70) D74 43 (E01) 20 /DI., 20 msec./di. http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 12/17
Tool Setting D74 106 (#80) D74 43 (E01) 20 /DI., 20 msec./di. The wavelength becomes shorter as the engine rpm increases. (e) WAEFORM 4: Knock sensor Tool Setting D74 94 (KNK1) D74 93 (EKNK) 1 /DI., 1 msec./di. Engine speed maintained at 4000 rpm after warming up engine D74 117 (KNK2) D74 116 (EKN2) 1 /DI., 1 msec./di. Engine speed maintained at 4000 rpm after warming up engine D74 96 (KNK3) D74 95 (EKN3) 1 /DI., 1 msec./di. Engine speed maintained at 4000 rpm after warming up engine D74 119 (KNK4) D74 118 (EKN4) 1 /DI., 1 msec./di. Engine speed maintained at 4000 rpm after warming up engine The wavelength becomes shorter as the engine rpm increases. The s and amplitudes displayed differ slightly depending on the vehicle. (f) WAEFORM 5: Crankshaft position sensor and T sensor for intake side Tool Setting (a) D74 110 (NE+) D74 111 (NE ) 5 /DI., 20 msec./di. Idle after engine warmed up (b) D74 92 (1+) D74 91 (1 ) 5 /DI., 20 msec./di. Idle after engine warmed up (c) D74 87 (2+) D74 88 (2 ) 5 /DI., 20 msec./di. Idle after engine warmed up The wavelength becomes shorter as engine rpm increases. http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 13/17
(g) WAEFORM 6: Igniter IGT signal (from ECM to igniter) and Igniter IGF signal (from igniter to ECM) Tool Setting (a) D74 40 (IGT1) 2 /DI., 20 msec./di. (a) D74 33 (IGT2) 2 /DI., 20 msec./di. (a) D74 37 (IGT3) 2 /DI., 20 msec./di. (a) D74 34 (IGT4) 2 /DI., 20 msec./di. (a) D74 35 (IGT5) 2 /DI., 20 msec./di. (a) D74 36 (IGT 2 /DI., 20 msec./di. (a) D74 38 (IGT7) 2 /DI., 20 msec./di. (a) D74 39 (IGT8) 2 /DI., 20 msec./di. (b) D74 104 (IGF1) 2 /DI., 20 msec./di. (b) D74 105 (IGF2) 2 /DI., 20 msec./di. The wavelength becomes shorter as engine rpm increases. (h) WAEFORM 7: Purge S Tool Setting D74 63 (PRG) 10 /DI., 10 to 100 msec./di. If the is not similar to the illustration, check the again after idling for 10 minutes or more. (i) WAEFORM 8: ehicle speed signal http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 14/17
Tool Setting Tool Setting A24 13 (SPD) D74 81 (E1) 2 /DI., 20 msec./di. Driving at 20 km/h (12 mph) The wavelength becomes shorter as the vehicle speed increases. (j) WAEFORM 9: Throttle actuator positive terminal Tool Setting D74 19 (M+) D74 82 (ME01) 5 /DI., 1 msec./di. with warm engine The duty ratio varies depending on the throttle actuator operation. (k) WAEFORM 10: Throttle actuator negative terminal Tool Setting D74 18 (M ) D74 82 (ME01) 5 /DI., 1 msec./di. with warm engine The duty ratio varies depending on the throttle actuator operation. (l) WAEFORM 11: Engine speed signal Tool Setting A24 15 (TACH) 5 /DI., 10 msec./di. The wavelength becomes shorter as the engine rpm increases. (m) WAEFORM 12: CAN communication signal http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 15/17
Tool Setting Tool Setting A24 10 (CANH) D74 81 (E1) 1 /DI., 10 μsec./di. Engine stops and ignition switch ON The varies depending on the CAN communication signal. (n) WAEFORM 13: CAN communication signal Tool Setting A24 11 (CANL) D74 81 (E1) 1 /DI., 10 μsec./di. Engine stops and ignition switch ON The varies depending on the CAN communication signal. (o) WAEFORM 14: Crankshaft position sensor and camshaft position sensor Tool Setting CH1: D74 110 (NE+) D74 111 (NE ) 5 /DI., 20 msec./di. Idle after engine warmed up CH2: D74 90 (G2) D74 89 (G2 ) 5 /DI., 20 msec./di. Idle after engine warmed up The wavelength becomes shorter as the engine rpm increases. (p) WAEFORM 15: Terminal DI of air injection control driver Tool Setting D74 30 (AIDI) 5 /DI., 20 to 40 msec./di. Performing system check using Techstream (air injection check) http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 16/17
Tool Setting D74 29 (AID2) 5 /DI., 20 to 40 msec./di. Performing system check using or Techstream (air injection check) The wavelength changes when the air injection control driver detects malfunctions in the air injection system. (q) WAEFORM 16: Crankshaft position sensor and T sensor for exhaust side Tool Setting (a) D74 110 (NE+) D74 111 (NE ) 5 /DI., 20 msec./di. Idle after engine warmed up (b) D74 69 (E1+) D74 68 (E1 ) 5 /DI., 20 msec./di. Idle after engine warmed up (c) D74 64 (E2+) D74 65 (E2 ) 5 /DI., 20 msec./di. Idle after engine warmed up The wavelength becomes shorter as engine rpm increases. Copyright 2011 2013 Service Repair Solutions, Inc. Portions of materials contained herein have been reprinted under license from Toyota Motor Sales, U.S.A., Inc., License Agreement TMS1003. http://dh.identifix.com/searchfixes/index?roid=152002999&id=2203774&sm=4&hasookmark=0&locationid=2#kw=pcm&soption=1&etid=8&st... 17/17