DESCRIPTION
Clutch switch circuit inspection is necessary for manual transmission vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery voltage through the ECU-IG NO. 2 fuse and ignition switch. While the clutch pedal is depressed, the clutch switch assembly sends a signal to terminal D of the ECM. The ECM cancels cruise control when terminal D receives the signal (voltage of below 1 V).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (ECM - BATTERY) |
(a) Disconnect the ECM connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E12-27 (D) - Body ground |
Clutch pedal depressed |
Below 1 V |
E12-27 (D) - Body ground |
Clutch pedal released |
11 to 14 V |
*a |
Front view of wire harness connector (to ECM) |
(d) Reconnect the ECM connector.
OK | ![]() |
PROCEED TO PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT CLUTCH SWITCH ASSEMBLY |
(a) Remove the clutch switch assembly (See page
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
C14-1 - C14-2 |
Clutch pedal depressed |
10 kΩ or higher |
C14-1 - C14-2 |
Clutch pedal released |
Below 1 Ω |
(c) Reinstall the clutch switch.
NG | ![]() |
REPLACE CLUTCH SWITCH ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM) |
(a) Disconnect the E12 ECM connector.
(b) Disconnect the C14 clutch switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
C14-2 - Body ground |
Always |
10 kΩ or higher |
C14-2 - E12-27 (D) |
Always |
Below 1 Ω |
(d) Reconnect the clutch switch connector.
(e) Reconnect the ECM connector.
OK | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - BATTERY) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM) |
Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129)
DESCRIPTION
These DTCs are stored when a communication malfunction occurs between ECUs that
perform pre-collision system control.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0100
Lost Communication with ECM ...
Inverter Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT INVERTER RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
...
Front Radar Sensor (C1A10)
DESCRIPTION
When an internal malfunction is detected in the millimeter wave radar sensor
assembly, DTC C1A10 is stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1A10
Front Radar Sensor
When the ...