Inspection steps
- Check cruise control main switch circuit.
- Remove the driver's airbag module.
- Disconnect the cruise control command switch connector.
- Turn the ignition switch to ON.
- Measure the voltage between connector terminal and chassis ground.
Voltage
Inspection terminals Inspection conditions Standard value Z5-4 - chassis ground IG ON 5V or more NG: Check the roll connector, and repair or replace the harness.
OK: Go to next step
- Check cruise control main switch circuit.
- Turn the ignition switch to OFF.
- Measure the resistance between connector terminal and chassis ground.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Z5-3 - chassis ground Always Less than 10 Ω NG: Check ECM and roll connector, and repair or replace the harness.
OK: Go to next step
- Check cruise control main switch circuit.
- Measure the resistance when the cruise control main switch is not in operation.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Cruise control main switch side connector terminal 3 - cruise control main switch side connector terminal 1 IG ON 1 MΩ or more NG: Replace the cruise control main switch.
OK: Go to next step
- Measure the resistance when the cruise control main switch is not in operation.
- Check cruise control main switch circuit.
- Measure the resistance when the cruise control ON-OFF switch is pressed.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Cruise control main switch side connector terminal 3 - cruise control main switch side connector terminal 1 IG ON Less than 1 Ω NG: Replace the cruise control main switch.
OK: Go to next step
- Measure the resistance when the cruise control ON-OFF switch is pressed.
- Check cruise control main switch circuit.
- Measure the resistance when the CANCEL switch is pressed.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Cruise control main switch side connector terminal 3 - cruise control main switch side connector terminal 1 Always Approx. 1540Ω NG: Replace the cruise control main switch.
OK: Go to next step
- Measure the resistance when the CANCEL switch is pressed.
- Check cruise control main switch circuit.
- Measure the resistance when the -SET switch is pressed.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Cruise control main switch side connector terminal 3 - cruise control main switch side connector terminal 1 Always Approx. 630Ω NG: Replace the cruise control main switch.
OK: Go to next step
- Measure the resistance when the -SET switch is pressed.
- Check cruise control main switch circuit.
- Measure the resistance when the +RES switch is pressed.
Resistance (open circuit check)
RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)Inspection terminals Inspection conditions Standard value Cruise control main switch side connector terminal 3 - cruise control main switch side connector terminal 1 Always Approx. 240Ω NG: Replace the cruise control main switch.
OK: Replace the ECM.
- Measure the resistance when the +RES switch is pressed.