DYNAMIC STABILITY CONTROL HU/CM INSPECTION
- Disconnect the DSC HU/CM connector. (See «DSC HU/CM REMOVAL/INSTALLATION»(ref-579348-S13608903472013100700000) .)
- Connect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .) (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-579332-S32330103212013100700000) .) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-579331-S30971870802013100700000) .)
- Attach the tester lead to the DSC HU/CM wiring harness-side connector and inspect voltage, continuity, or resistance according to the standard (reference) on the table.
Identifying DSC HU/CM Connector Terminals - Wiring Harness-Side. Scheme 1
| Terminal | Signal name | Connected to | Measured item | Measured terminal (measurement condition) | Standard | Inspection item(s) |
|---|---|---|---|---|---|---|
| A | ||||||
| B | Ground | Ground point | Continuity | B-ground point | Continuity detected | Wiring harness (B-ground point) |
| C | ||||||
| D | ||||||
| E | ||||||
| F | LF wheel-speed sensor (-) | LF wheel-speed sensor | Continuity | F-LF ABS wheel-speed sensor terminal B | Continuity detected | Wiring harness (F-LF ABS wheel-speed sensor terminal B) |
| G | ||||||
| H | ||||||
| I | LF wheel-speed sensor (+) | LF ABS wheel-speed sensor | Continuity | I-LF ABS wheel-speed sensor terminal A | Continuity detected | Wiring harness (I-LF ABS wheel-speed sensor terminal A) |
| J | CAN_L | DLC-2 (CAN_L) | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | |||
| K | ||||||
| L | ||||||
| M | CAN_H | DLC-2 (CAN_H) | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | |||
| N | ||||||
| O | RR wheel-speed (+) | RR ABS wheel-speed sensor | Continuity | O-RR ABS wheel-speed sensor terminal A | Continuity detected | Wiring harness (O-RR ABS wheel-speed sensor terminal A) |
| P | ||||||
| Q | ||||||
| R | RR wheel-speed (-) | RR ABS wheel-speed sensor | Continuity | R-RR ABS wheel-speed sensor terminal B | Continuity detected | Wiring harness (R-RR ABS wheel-speed sensor terminal B) |
| S | ||||||
| T | ||||||
| U | ||||||
| V | ||||||
| W | ||||||
| X | ||||||
| Y | Power supply (system) | Ignition switch or IG1 relay | Voltage | Switch the ignition to ON. | B+ | Wiring harness (Y-ignition switch or IG1 relay) |
| Switch the ignition to off. | 1 V or less | |||||
| Z | ||||||
| AA | ||||||
| AB | ||||||
| AC | ||||||
| AD | ||||||
| AE | ||||||
| AF | ||||||
| AG | LR wheel-speed (-) | LR wheel-speed sensor | Continuity | AG-LR ABS wheel-speed sensor terminal B | Continuity detected | Wiring harness (AG-LR ABS wheel-speed sensor terminal B) |
| AH | ||||||
| AI | ||||||
| AJ | LR wheel-speed (+) | LR ABS wheel-speed sensor | Continuity | AJ-LR ABS wheel-speed sensor terminal A | Continuity detected | Wiring harness (AJ-LR ABS wheel-speed sensor terminal A) |
| AK | DSC OFF switch | DSC OFF switch | Continuity | AK-DSC OFF switch terminal B | Continuity detected | Wiring harness (AK-DSC OFF switch terminal B) |
| AL | CAN2_L | SAS control module | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | |||
| AM | ||||||
| AN | ||||||
| AO | CAN2_H | SAS control module | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | |||
| AP | RF wheel-speed (+) | RF ABS wheel-speed sensor | Continuity | AP-RF ABS wheel-speed sensor terminal A | Continuity detected | Wiring harness (AP-RF ABS wheel-speed sensor terminal A) |
| AQ | ||||||
| AR | ||||||
| AS | RF wheel-speed (-) | RF ABS wheel-speed sensor | Continuity | AS-RF ABS wheel-speed sensor terminal B | Continuity detected | Wiring harness (AS-RF ABS wheel-speed sensor terminal B) |
| AT | Power supply (ABS motor operation) | Battery | Voltage | Under any condition | B+ | Wiring harness (AT-battery) |
| AU | Power supply (solenoid operation) | Battery | Voltage | Under any condition | B+ | Wiring harness (AU-battery) |
FRONT ABS WHEEL-SPEED SENSOR INSPECTION
- Inspect the front ABS wheel-speed sensor in the same order of vehicles with ABS. (See «FRONT ABS WHEEL-SPEED SENSOR INSPECTION»(ref-579351-S22995235392013100700000) .)
REAR ABS WHEEL-SPEED SENSOR INSPECTION
- Inspect the rear ABS wheel-speed sensor in the same order of vehicles with ABS. (See «REAR ABS WHEEL-SPEED SENSOR INSPECTION»(ref-579351-S29511256192013100700000) .)
Scheme 2
Scheme 3
- Switch the ignition to off.
- Install the SSTs to the master cylinder (secondary side) as shown in the figure. (Scheme 2): Identifying Connections Of SSTs To Master Cylinder NOTE: When installing the SST (49 D043 0A0) to the master cylinder, use a commercially available flare nut wrench (flare nut across flat 12 mm {0.47 in} ).
- Bleed the brake line and the SSTs of air. (Bleed the SSTs of air using air bleed valve A.)
- Connect the M-MDS to the DLC-2. (Scheme 3): Identifying Data Link Connector (DLC-2)
- Select the "MCYLI_P" PID. (See «ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)]»(ref-579416-S37115631302013100700000).)
- Start the engine.
- Depress the brake pedal, and verify that the fluid pressure value of the SST (gauge) and the value shown on the M-MDS are equal. If the fluid pressure values are different, replace the DSC HU/CM. (See «DSC HU/CM REMOVAL/INSTALLATION»(ref-579348-S13608903472013100700000).)
Scheme 4
Scheme 5
- Remove the switch panel in the direction of the arrow shown in the figure. (Scheme 4): Switch Panel
- Disconnect the connector.
- Remove the DSC OFF switch in the direction of the arrow (2) shown in the figure while pressing the tabs in the direction of the arrow (1). (Scheme 5): DSC OFF Switch
- Remove the DSC OFF switch.
- Install in the reverse order of removal.
Scheme 6
- Remove the DSC OFF switch. (See «DSC OFF SWITCH REMOVAL/INSTALLATION»(ref-579348-S27460481642013100700000).)
- Verify that the continuity between the DSC OFF switch terminals is as indicated in the table. If not as indicated in the table, replace the DSC OFF switch. (Scheme 6): DSC OFF Switch Connector Terminals And Continuity Test Chart
- Apply battery voltage to DSC OFF switch terminal E, and connect terminal A to ground.
- Verify that the LED illuminates. If there is any malfunction, replace the DSC OFF switch.