DTC 16

CIRCUIT OPERATION
The ABS-ECU power is supplied to the ABS-ECU (terminal 9) from the ignition switch (IG2) through the multipurpose fuse number 7 in the junction block and through the joint connector number 1.

ABS DTC SET CONDITION
Output is provided when ABS-ECU power supply voltage drops below or rises above the normal value. Output is not provided if power supply voltage returns to normal voltage.

TROUBLESHOOTING HINTS
The most likely causes for DTC is to set are:
- Damaged wiring harness and connector
- Malfunction of hydraulic unit

DIAGNOSIS
STEP 1. Check the power supply circuit at the ABS-ECU connector A-85.





1. Disconnect connector A-85 and measure at the harness side.
2. Start the engine.
3. Measure the voltage between the terminal 9 and ground. Voltage should be approximately 12 volts (battery positive voltage)
4. Turn the ignition switch "OFF."
If not approximately 12 volts, go to Step 2.
If approximately 12 volts, go to Step 3.








STEP 2. Check harness connectors A-85 and D-08 for damage.
If the harness connectors are damaged, repair or replace it. Then confirm that a diagnostic trouble code is not output.
If the harness connectors are in good condition, go to Step 4.





STEP 3. Check harness connector A-85 for damage.
If the harness connector is damaged, repair or replace it.
If the harness connector is in good condition, replace the hydraulic unit. Then confirm that a diagnostic trouble code is not output.








STEP 4. Check the harness wire between the ignition switch connector D-08 and ABS-ECU connector A-85.
If any harness wires between the ignition switch connector D-08 and ABS-ECU connector A-85 are damaged, repair them. Then confirm that a diagnostic trouble code is not output.

NOTE: After inspecting intermediate connectors C-17, C-11 and D-13, inspect the wire. If intermediate connector C-17, C-11 or D-13 is damaged, repair or replace it. Then confirm that a diagnostic trouble code is not output.