Checking Failed TOD Control Unit Pin: Notes
NOTE:
- Unplug the ECU connector and the pins, unless otherwise specified.
- Before removing the ECU, turn off the ignition switch.
- If the standard values are not observed, check the pins with other testers.
TOD CONTROL UNIT
| Check Pin No. | Circuit to be tested | Ignition Switch Position | Engine State | Unit Scale/Range | Measure between Pin No. | Standard Value | Note |
|---|---|---|---|---|---|---|---|
| 22 | P-GND | OFF | STOP | ohm | 22, 47 | Continuity: OK | |
| 47 | GND 2 | OFF | STOP | ohm | 47, GND | Continuity: OK | |
| 31 | 4H SW | OFF | STOP | ohm | 31, 47 | No continuity (high, 4L): OK | |
| 44 | 4L SW | OFF | STOP | ohm | 44, 47 | No continuity (high) and continuity (4L): OK | |
| 29 | DIAG | OFF | STOP | ohm | 29 (TOD), 8 (DLC Connector) | Continuity: OK | DLC connector terminal 8 |
| 7 | IND.A | ON | STOP | DCV | 7 (+), 47 (-) | 8.0~14.5 V | when the indicator lamp is turned off. |
| 20 | CHECK TOD | ON | STOP | DCV | 20 (+), 47 (-) | 8.0~14.5 V | When the indicator lamp is turned off. |
| 33 | ABS IN | ON | STOP | DCV | 33 (+), 47 (-) | 6.0~11.0 V | |
| 12 | REF | ON | STOP | DCV | 12 (+), 47 (-) | 5~9 V | Connect ECU |
| 32 | FRT.(+) | ON | STOP | DCV | 32 (+), 47 (-) | 0.7~6 V | Connect ECU and move the vehicle (off one tooth of speed sensor ring) making sure of voltage change. |
| 45 | RR.(+) | ON | STOP | DCV | 45 (+), 47 (-) | 0.7~6 V | Connect ECU and move the vehicle (off one tooth of speed sensor ring) making sure of voltage change. |
| 13 | COM(-) | ON | STOP | DCV | 13 (+), 47 (-) | 0V | Connect ECU |
| 14 | VIG | ON | STOP | DCV | 14 (+), 47 (-) | 8~14.5 V | |
| 34 | VB | OFF | STOP | DCV | 34 (+), 47 (-) | 8.0~14.5 V | |
| 37 | BRAKE SW | OFF | STOP | DCV | 37 (+), 47 (-) | 8~14.5 V | Press brake pedal |
| 15 | TPS | ON | STOP | DCV | 15 (+), 47 (-) | PWM duty cycle 10% (MAX) - 90% (MIN) | Step on the accelerator pedal and make sure that duty cycle changes. |
| 36 | 4WD OUT | OFF | STOP | ohm | 36, 47 | 7~12 kohm | Disconnect battery GND terminal |
| 11 | EMC(+) | OFF | STOP | ohm | 11, 22 | 1.0~5.0 ohm | Disconnect battery GND terminal |
| 30 | TOD SW A | ON | STOP | DCV | 30 (+), 47 (-) | SW: TOD, 4L: 0 V SW:2H:8.0~14.5 V | |
| 43 | TOD SWB | ON | STOP | DCV | 43 (+), 47 (-) | SW: 2H, TOD:0V SW: 4L: 8.0~14.5V | |
| 40 | LIGHT | ON | STOP | DCV | 40 (+), 47 (-) | SW OFF: 0 V SW ON: 8.0~14.5 V | |
| 19 | IND B | ON | STOP | DCV | 19 (+), 47(-) | 8.0~14.5 V | When the indicator lamp is turned off |
| 8 | IND C | ON | STOP | DCV | 8 (+), 47 (-) | 8.0~14.5 V | When the indicator lamp is turned off |
| 27 | AT POSN | ON | STOP | DCV | 27 (+), 47 (-) | ON:N OFF: Except N | ON: 8.0~14.5 V OFF: 0V |
| 41 | AT POSR | ON | STOP | DCV | 41 (+), 47 (-) | ON:R OFF: Except R | ON: 8.0~14.5 V OFF:0V |
| ON:P | ON: 8.0~14.5 V | ||||||
| 28 | AT POSP | ON | STOP | DCV | 28 (+), 47 (-) | OFF: Except P | OFF: 0V |
| 2 | ENG REV | ON | RUN | ms | 2,47 | Waveform (PWM) | 50 ms (1000 rpm) |