2.CHECK ACC STEERING SWITCH CIRCUIT
With M.U.T.-III SE- Turn ignition switch ON.
- Select following items in “DATA MONITOR” mode of “ENGINE” using M.U.T.-III SE.
- Check each item indication as per the following conditions.
Monitor item | Condition | Indication |
MAIN SW | MAIN switch | Pressed | ON |
Released | OFF |
DIST | DISTANCE switch | Pressed | ON |
Released | OFF |
CANCEL SW | CANCEL switch | Pressed | ON |
Released | OFF |
RESUME/ACC SW | RES+ switch | Pressed | ON |
Released | OFF |
SET SW | SET- switch | Pressed | ON |
Released | OFF |
Without M.U.T.-III SE- Turn ignition switch ON.
- Check the voltage between ECM harness connector terminals.
ECM | Condition | Voltage (Approx.) |
Connector | + | - |
Terminal |
E16 | 142 | 143 | MAIN switch: Pressed | Approx. 0 |
CANCEL switch: Pressed | Approx. 1.18 |
DISTANCE switch: Pressed | Approx. 1.51 |
SET- switch: Pressed | Approx. 2.00 |
RES+ witch: Pressed | Approx. 2.71 |
Is the inspection result normal?
.
3.CHECK ACC STEERING SWITCH GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect combination switch (spiral cable) harness connector.
- Check the continuity between combination switch (spiral cable) and ECM harness connector.
+ | − | Continuity |
Combination switch (Spiral cable) | ECM |
Connector | Terminal | Connector | Terminal |
M30 | 1 | E16 | 143 | Existed |
- Also check harness for short to ground and to power.
Is the inspection result normal?
. Repair or replace error-detected parts.
4.CHECK ACC STEERING SWITCH INPUT SIGNAL CIRCUIT
- Check the continuity between ECM harness connector and combination switch.
+ | − | Continuity |
Combination switch (Spiral cable) | ECM |
Connector | Terminal | Connector | Terminal |
M30 | 8 | E16 | 142 | Existed |
- Also check harness for short to ground and to power.
Is the inspection result normal?
. Repair or replace error-detected parts.
5.CHECK ACC STEERING SWITCH