NO.31 i-stop FUNCTION DOES NOT OPERATE [MZR 2.0 DISI i-stop]
id0103d3333600
MTX
|
31 |
i-stop FUNCTION DOES NOT OPERATE |
|---|---|
|
DESCRIPTION
|
• i-stop function does not operate when vehicle is stopped.
|
|
POSSIBLE CAUSE
|
False detection of conditions other than i-stop function operation
• Falsely detects that driver does not intend to stop
• Falsely detection of internal/external vehicle temperature out of operation range (−10 to 50 °C {14 to 122 °F})
• i-stop OFF switch malfunction
• False detection of stopped vehicle
• False detection of depressed clutch pedal
• False detection of shift lever in position other than neutral
• False detection of vehicle in unsafe condition
• False detection of parked vehicle
• False detection of low power brake unit load
• Falsely detects that climate control unit detects driver-side air mix door position at MAX HOT or MAX COLD
• False detection of rear window defroster operation
|
|
POSSIBLE CAUSE
|
Falsely detects possible inability of engine to restart
• Falsely detects that keyless control module detects that transmitter (advanced key) is outside of cabin
• False detection of low (less than 0 °C {32 °F}) or high (70 °C {158 °F} or more) battery fluid temperature
• False detection of low engine coolant temperature (55 °C {131 °F} or less)
• False detection of high intake air temperature (100 °C {212 °F} or more)
• Falsely detects that keyless control module detects that transmitter (advanced key) is outside of cabin
Determines possible inability of engine to restart
• Battery voltage decrease
• Any of the following parts exceeds assured operation amount:
• Number of times engine restart exceed limit.
• Number of cranking using the sub battery exceed limit.
|
Diagnostic procedure
|
STEP |
INSPECTION |
RESULTS |
ACTION |
|---|---|---|---|
|
1
|
Retrieve the PCM, BCM, SAS control module, instrument cluster and climate control unit (full-auto air conditioner) DTCs using the M-MDS.
(See DTC INSPECTION [BCM].)
(See DTC INSPECTION [TYPE A].)
(See DTC INSPECTION [TYPE B].)
Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
(See DTC TABLE [TYPE A].)
(See DTC TABLE [TYPE B].)
|
|
No
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Go to the next step.
|
||
|
2
|
Inspect advanced key battery power status.
Is there any battery power status?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the new advanced key battery.
|
||
|
3
|
INSPECT THE ELECTROLYTE GRAVITY OF THE SUB BATTERY
• Inspect the electrolyte gravity of the sub battery.
• Is the electrolyte gravity of all the cells within the 1.17—1.25 range?
|
Yes
|
Recharge the sub battery.
Go to the next step.
|
|
No
|
When the electrolyte gravity is 1.16 or less
• Replace the sub battery.
When the electrolyte gravity is 1.25 or more
• Go to Step 5.
|
||
|
4
|
ONCE AGAIN INSPECT THE ELECTROLYTE GRAVITY OF THE SUB BATTERY
• Once again inspect the electrolyte gravity of the sub battery.
• Is the electrolyte gravity of all the cells 1.24 or more?
|
Yes
|
Drive the vehicle to verify that i-stop operates normally.
• If i-stop operates normally, the troubleshooting diagnostic procedure is completed.
• If i-stop does not operate normally, go to the next step.
|
|
No
|
• Replace the sub battery.
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||
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5
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INSPECT THE ELECTROLYTE GRAVITY OF THE MAIN BATTERY
• Inspect the electrolyte specific gravity of the main battery.
• Is the electrolyte gravity of all the cells within the 1.17—1.22 range?
|
Yes
|
Recharge the main battery.
Go to the next step.
|
|
No
|
When the electrolyte gravity is 1.16 or less
• Replace the main battery.
When the electrolyte gravity is 1.22 or more
• Go to Step 7.
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||
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6
|
ONCE AGAIN INSPECT THE ELECTROLYTE GRAVITY OF THE MAIN BATTERY
• Once again inspect the electrolyte gravity of the main battery.
• Is the electrolyte gravity of all the cells 1.21 or more?
|
Yes
|
Drive the vehicle to verify that i-stop operates normally.
• If i-stop operates normally, the troubleshooting diagnostic procedure is completed.
• If i-stop does not operate normally, go to the next step.
|
|
No
|
• Replace the main battery.
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||
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7
|
Perform the initialization of the steering angle sensor.
Has the malfunction symptom been eliminated?
|
Yes
|
Malfunction caused by the steering angle sensor initialization malfunction.
• Symptom troubleshooting is completed.
|
|
No
|
Go to the next step.
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||
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8
|
Start the engine and drive the vehicle for 5 min.
Idle the engine.
Access the following PCM PIDs using the M-MDS:
• BATT_TEMP (0—70 °C {32—158 °F})
• ECT (55 °C {131 °F} or more)
• IAT (less than 100 °C {212 °F})
• APP1 (approx. 8%)
• APP2 (approx. 8%)
Are the PID values out of the i-stop operation range?
|
Yes
|
Inspect the related-PID sensor which is out of range and the wiring harness.
Repair or replace the malfunctioning part according to the inspection results.
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No
|
Go to the next step.
|
||
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9
|
Switch the ignition to ON.
Compare the ambient temperature sensor on the information display with the actual ambient temperature.
Does the ambient temperature on the information display correspond to the actual ambient temperature?
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Yes
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Go to Step 11.
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No
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Go to the next step.
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10
|
Inspect the ambient temperature sensor.
Is there any malfunction?
|
Yes
|
Replace the ambient temperature sensor.
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No
|
Inspect the following:
• Short or open circuit in wiring harness between ambient temperature sensor terminal A and BCM terminal 1X
• Open circuit in wiring harness between ambient temperature sensor terminal B and BCM terminal 1H
Repair or replace the suspected wiring harness.
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||
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11*
|
Measure the voltage at the PCM terminal 1AV with the i-stop OFF switch and related wiring harness are shaken.
Is the voltage normal when the i-stop OFF switch and related wiring harness are shaken?
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Yes
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Go to Step 13.
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No
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Go to the next step.
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12
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Inspect the i-stop OFF switch.
Is there any malfunction?
|
Yes
|
Replace the i-stop OFF switch.
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No
|
Repair or replace the wiring harness between i-stop OFF switch terminal I and PCM terminal 1AV for a possible short to ground.
|
||
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13
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Start the engine and warm it up completely.
Idle the engine.
Access the following PCM PIDs using the M-MDS:
• CHG_STAT_A
• CHG_STAT_B
Are the PID values normal?
|
Yes
|
Go to Step 18.
|
|
No
|
If the CHG_STAT_A PID value is not normal:
• Go to Step 16.
If the CHG_STAT_B PID value is not normal:
• Go to the next step.
|
||
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14
|
Inspect the charge relay.
(See RELAY INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the charge relay.
|
|
No
|
Go to the next step.
|
||
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15
|
Inspect the wiring harness between charge relay terminal D and PCM terminal 1L for a short or open circuit.
Is there any malfunction?
|
Yes
|
Repair or replace the wiring harness for a possible a short or open circuit.
|
|
No
|
Go to the next step.
|
||
|
16
|
Recharge the battery for which the monitoring value in Step 8 is not normal.
Inspect the battery.
Is there any malfunction?
|
Yes
|
Replace the battery.
|
|
No
|
Go to the next step.
|
||
|
17
|
Inspect the generator.
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
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18
|
Inspect the sensor output value from the ABS wheel-speed sensor.
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
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19*
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Switch the ignition to ON.
Access the PCM PID CPP using the M-MDS.
Does the CPP PID value change according to the amount the clutch pedal is depressed?
|
Yes
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Go to Step 21.
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No
|
Go to the next step.
|
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20
|
Inspect the clutch stroke sensor.
Is there any malfunction?
|
Yes
|
Replace the clutch stroke sensor.
|
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No
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Go to the next step.
|
||
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21*
|
Switch the ignition to ON.
Access the following PCM PID using the M-MDS:
• NEUTRAL_SW1
• NEUTRAL_SW2
Is the PID values congruent with the shift lever operation?
|
Yes
|
Go to Step 23.
|
|
No
|
Go to the next step.
|
||
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22
|
Inspect the PID-related switch in which the malfunction occurred in Step 17.
Is there any malfunction?
|
Yes
|
Replace the applicable switch.
|
|
No
|
Inspect the wiring harness between the following terminals in which the malfunction occurred in Step 21 for a short to power supply or open circuit:
• Neutral switch No.1 terminal A—PCM terminal 2AA
• Neutral switch No.2 terminal A—PCM terminal 1AJ
Repair or replace the suspected wiring harness.
|
||
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23*
|
Switch the ignition to ON.
Access the BCM PID HOOD_SW using the M-MDS.
Is the HOOD_SW PID value normal?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to Step 25.
|
|
No
|
Go to the next step.
|
||
|
24
|
Inspect the bonnet latch switch.
Is there any malfunction?
|
Yes
|
Replace the bonnet latch switch.
|
|
No
|
Repair or replace the wiring harness between bonnet latch switch terminal A and BCM terminal 1J for a possible open circuit.
|
||
|
25*
|
Switch the ignition to ON.
Access the following BCM PIDs using the M-MDS:
• TR/LG_SW
• DRSW_D
• DRSW_P
• DRSW_LR
• DRSW_RR
Are the PID values congruent with the opening and closing of the doors and liftgate/trunk?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to Step 27.
|
|
No
|
Go to the next step.
|
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|
26
|
Inspect the PID-related switch in which the malfunction occurred in Step 21.
Is there any malfunction?
|
Yes
|
Replace the applicable switch.
|
|
No
|
Inspect the following wiring harness in which the malfunction occurred in Step 25:
• Open circuit in wiring harness between door latch switch and BCM
• Short to ground in wiring harness between liftgate/trunk lid latch switch and BCM
Repair or replace the suspected wiring harness.
|
||
|
27
|
Switch the ignition to ON.
Access the SAS control module PID BUCKLE_D using the M-MDS.
Is the BUCKLE_D PID value congruent with the seat belt condition?
|
Yes
|
Go to Step 29.
|
|
No
|
Go to the next step.
|
||
|
28
|
Inspect the driver-side buckle switch.
(See BUCKLE SWITCH INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the driver-side buckle switch.
|
|
No
|
Repair or replace the wiring harness between driver-side buckle switch and SAS control module terminal 2M for a possible short to ground.
|
||
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29
|
Position the advanced key in the same position as when the malfunction occurred.
Can the engine be started?
|
Yes
|
Go to Step 31.
|
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No
|
Go to the next step.
|
||
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30
|
Inspect the wiring harness between keyless antenna and keyless control module for a short or open circuit when the malfunction occurred and the advanced key was not in the operable range.
Is there any malfunction?
|
Yes
|
Repair or replace the wiring harness for a possible a short or open circuit.
|
|
No
|
Replace the applicable keyless antenna.
|
||
|
31
|
Switch the ignition to ON.
Access the EHPAS PID STEER_RATE using the M-MDS.
Is the PID value normal?
|
Yes
|
Go to Step 33.
|
|
No
|
Go to the next step.
|
||
|
32
|
Inspect the steering angle sensor.
Is there any malfunction?
|
Yes
|
Replace the steering angle sensor.
|
|
No
|
Inspect the wiring harness between the following terminals for a short or open circuit:
• Steering angle sensor terminal A—BCM terminal 2E
• Steering angle sensor terminal B—BCM terminal 2H
• Steering angle sensor terminal C—BCM terminal 2I
• Steering angle sensor terminal D—BCM terminal 2F
• Steering angle sensor terminal E—BCM terminal 2D
• Steering angle sensor terminal F—BCM terminal 2G
Repair or replace the suspected wiring harness.
|
||
|
33
|
Switch the ignition to ON.
Access the BCM PID R_DEF_SW using the M-MDS.
Does the R_DEF_SW PID value change according to the defroster switch operation?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to the next step.
|
|
No
|
Replace the climate control unit.
|
||
|
34
|
Idle the engine.
Access the PCM PID BBP using the M-MDS with the brake pedal held depressed while the i-stop function is operating.
Does the BBP PID value remain less than −45 kPa {−0.46 kgf/cm2, −6.5 psi}?
|
Yes
|
Go to Step 37.
|
|
No
|
Go to the next step.
|
||
|
35
|
Perform the vacuum function inspection for the power brake unit and the vacuum loss inspection.
(See POWER BRAKE UNIT INSPECTION.)
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
|
36
|
Inspect the power brake unit vacuum sensor.
(See POWER BRAKE UNIT INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the power brake unit vacuum sensor.
|
|
No
|
Inspect the wiring harness between the following terminals for a short or open circuit:
• Power brake unit vacuum sensor terminal A—PCM terminal 1P
• Power brake unit vacuum sensor terminal B—PCM terminal 1Q
• Power brake unit vacuum sensor terminal C—PCM terminal 1N
Repair or replace the suspected wiring harness.
|
||
|
37
|
Measure the voltage at the climate control unit terminal 1G when the driver-side temperature setting is MAX HOT and MAX COLD.
Is the voltage normal?
|
Yes
|
Replace the PCM.
|
|
No
|
Go to the next step.
|
||
|
38
|
Inspect the driver-side air mix actuator.
Is there any malfunction?
|
Yes
|
Replace the driver-side air mix actuator.
|
|
No
|
Inspect the air mix actuator and linkage for sticking.
Repair or replace the malfunctioning part according to the inspection results.
|
||
|
39
|
Verify the test results.
• If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR 2.0 DISI i-stop].)
• If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
|
||
ATX
|
31 |
i-stop FUNCTION DOES NOT OPERATE |
|---|---|
|
DESCRIPTION
|
• i-stop function does not operate when vehicle is stopped.
|
|
POSSIBLE CAUSE
|
False detection of conditions other than i-stop function operation.
• False detection of non-operational i-stop system
• False detection of stopped vehicle
• Falsely detects that driver does not intend to stop.
• False detection of shift position other than D range
• False detection of M range
• Falsely detection of internal/external vehicle temperature out of operation range (−10 to 50 °C {14 to 122 °F})
• Climate control unit falsely detects that internal vehicle temperature is high.
• Falsely detects that climate control unit detects driver-side air mix door position at MAX HOT or MAX COLD
• Climate control unit falsely detects that i-stop function is operating in manual defroster mode.
• False detection of rear window defroster operation
• False detection of vehicle not being parked
|
|
POSSIBLE CAUSE
|
• False detection of vehicle in unsafe condition
Falsely detects possible inability of engine to restart
• Falsely detects that keyless control module detects that transmitter (advanced key) is outside of cabin
• False detection of low (55 °C {131 °F} or less) or high (110 °C {230 °F} or more) engine coolant temperature
• False detection of high intake air temperature (100 °C {212 °F} or more)
• False detection of low (less than 0 °C {32 °F}) or high (70 °C {158 °F} or more) battery fluid temperature
• False detection of low (40 °C {131 °F} or less) or high (110 °C {230 °F} or more) ATF temperature
Determines possible inability of engine to restart
• Any of the following parts exceeds assured operation amount:
• Battery voltage decrease
|
Diagnostic procedure
|
STEP |
INSPECTION |
RESULTS |
ACTION |
|---|---|---|---|
|
1
|
Retrieve the PCM, TCM, BCM, SAS control module, instrument cluster and climate control unit (full-auto air conditioner) DTCs using the M-MDS.
(See DTC INSPECTION [BCM].)
(See DTC INSPECTION [TYPE B].)
Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
(See DTC TABLE [TYPE B].)
|
|
No
|
Go to the next step.
|
||
|
2
|
Inspect advanced key battery power status.
Is there any battery power status?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the new advanced key battery.
|
||
|
3
|
INSPECT THE ELECTROLYTE GRAVITY OF THE SUB BATTERY
• Inspect the electrolyte gravity of the sub battery.
• Is the electrolyte gravity of all the cells within the 1.17—1.25 range?
|
Yes
|
Recharge the sub battery.
Go to the next step.
|
|
No
|
When the electrolyte gravity is 1.16 or less
• Replace the sub battery.
When the electrolyte gravity is 1.25 or more
• Go to Step 5.
|
||
|
4
|
ONCE AGAIN INSPECT THE ELECTROLYTE GRAVITY OF THE SUB BATTERY
• Once again inspect the electrolyte gravity of the sub battery.
• Is the electrolyte gravity of all the cells 1.24 or more?
|
Yes
|
Drive the vehicle to verify that i-stop operates normally.
• If i-stop operates normally, the troubleshooting diagnostic procedure is completed.
• If i-stop does not operate normally, go to the next step.
|
|
No
|
• Replace the sub battery.
|
||
|
5
|
INSPECT THE ELECTROLYTE GRAVITY OF THE MAIN BATTERY
• Inspect the electrolyte specific gravity of the main battery.
• Is the electrolyte gravity of all the cells within the 1.17—1.22 range?
|
Yes
|
Recharge the main battery.
Go to the next step.
|
|
No
|
When the electrolyte gravity is 1.16 or less
• Replace the main battery.
When the electrolyte gravity is 1.22 or more
• Go to Step 7.
|
||
|
6
|
ONCE AGAIN INSPECT THE ELECTROLYTE GRAVITY OF THE MAIN BATTERY
• Once again inspect the electrolyte gravity of the main battery.
• Is the electrolyte gravity of all the cells 1.21 or more?
|
Yes
|
Drive the vehicle to verify that i-stop operates normally.
• If i-stop operates normally, the troubleshooting diagnostic procedure is completed.
• If i-stop does not operate normally, go to the next step.
|
|
No
|
• Replace the main battery.
|
||
|
7
|
Perform the initialization of the low-G (XY) sensor and steering angle sensor.
Has the malfunction symptom been eliminated?
|
Yes
|
Malfunction caused by the low-G (XY) sensor or steering angle sensor initialization malfunction.
• Symptom troubleshooting is completed.
|
|
No
|
Go to the next step.
|
||
|
8
|
Start the engine and drive the vehicle for 5 min.
Idle the engine.
Access the following PCM and TCM PIDs using the M-MDS:
PCM PIDs:
• BATT_TEMP (0—70 °C {32—158 °F})
• ECT (55—110 °C {131—230 °F})
• IAT (less than 100 °C {212 °F})
• APP1 (approx. 8%)
• APP2 (approx. 8%)
TCM PID:
• TFT (40—110 °C {104—230 °F})
Are the PID values out of the i-stop operation range?
|
Yes
|
Inspect the related-PID sensor which is out of range and the wiring harness.
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
|
9
|
Switch the ignition to ON.
Compare the ambient temperature sensor on the information display with the actual ambient temperature.
Does the ambient temperature on the information display correspond to the actual ambient temperature?
|
Yes
|
Go to Step 11.
|
|
No
|
Go to the next step.
|
||
|
10
|
Inspect the ambient temperature sensor.
Is there any malfunction?
|
Yes
|
Replace the ambient temperature sensor.
|
|
No
|
Inspect the following:
• Short or open circuit in wiring harness between ambient temperature sensor terminal A and BCM terminal 1X
• Open circuit in wiring harness between ambient temperature sensor terminal B and BCM terminal 1H
Repair or replace the suspected wiring harness.
|
||
|
11*
|
Measure the voltage at the PCM terminal 1AV with the i-stop OFF switch and related wiring harness are shaken.
Is the voltage normal when the i-stop OFF switch and related wiring harness are shaken?
|
Yes
|
Go to Step 13.
|
|
No
|
Go to the next step.
|
||
|
12
|
Inspect the i-stop OFF switch.
Is there any malfunction?
|
Yes
|
Replace the i-stop OFF switch.
|
|
No
|
Repair or replace the wiring harness between i-stop OFF switch terminal I and PCM terminal 1AV for a possible short to ground.
|
||
|
13
|
Start the engine and warm it up completely.
Idle the engine.
Access the following PCM PIDs using the M-MDS:
• CHG_STAT_A
• CHG_STAT_B
Are the PID values normal?
|
Yes
|
Go to Step 18.
|
|
No
|
If the CHG_STAT_A PID value is not normal:
• Go to Step 16.
If the CHG_STAT_B PID value is not normal:
• Go to the next step.
|
||
|
14
|
Inspect the charge relay.
(See RELAY INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the charge relay.
|
|
No
|
Go to the next step.
|
||
|
15
|
Inspect the wiring harness between charge relay terminal D and PCM terminal 1L for a short or open circuit.
Is there any malfunction?
|
Yes
|
Repair or replace the wiring harness for a possible a short or open circuit.
|
|
No
|
Go to the next step.
|
||
|
16
|
Recharge the battery for which the monitoring value in Step 10 is not normal.
Inspect the battery.
Is there any malfunction?
|
Yes
|
Replace the battery.
|
|
No
|
Go to the next step.
|
||
|
17
|
Inspect the generator.
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
|
18
|
Inspect the sensor output value from the ABS wheel-speed sensor.
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
|
19*
|
Switch the ignition to ON.
Access the TCM PID TR using the M-MDS.
Is the TR PID value changing normally according to selector lever position?
|
Yes
|
Go to Step 21.
|
|
No
|
Adjust the TR switch and verify the PID values again.
• If the PID values are not normal:
• If the PID values are normal:
|
||
|
20
|
Inspect the TR switch.
Is there any malfunction?
|
Yes
|
Replace the TR switch.
|
|
No
|
Repair or replace the wiring harness between TR switch and TCM terminal U for a possible open or short circuit.
|
||
|
21*
|
Switch the ignition to ON.
Access the TCM PID MNL_SW using the M-MDS.
Is the PID value normal?
|
Yes
|
Go to Step 23.
|
|
No
|
Go to the next step.
|
||
|
22
|
Inspect the M range switch.
Is there any malfunction?
|
Yes
|
Replace the M range switch.
|
|
No
|
Repair or replace the wiring harness between selector lever component and TCM terminal K for a possible open or short circuit.
|
||
|
23*
|
Switch the ignition to ON.
Access the BCM PID HOOD_SW using the M-MDS.
Is the HOOD_SW PID value normal?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to Step 25.
|
|
No
|
Go to the next step.
|
||
|
24
|
Inspect the bonnet latch switch.
Is there any malfunction?
|
Yes
|
Replace the bonnet latch switch.
|
|
No
|
Repair or replace the wiring harness between bonnet latch switch terminal A and BCM terminal 1J for a possible open circuit.
|
||
|
25*
|
Switch the ignition to ON.
Access the following BCM PIDs using the M-MDS:
• TR/LG_SW
• DRSW_D
• DRSW_P
• DRSW_LR
• DRSW_RR
Are the PID values congruent with the opening and closing of the doors and liftgate/trunk?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to Step 27.
|
|
No
|
Go to the next step.
|
||
|
26
|
Inspect the PID-related switch in which the malfunction occurred in Step 22.
Is there any malfunction?
|
Yes
|
Replace the applicable switch.
|
|
No
|
Inspect the following wiring harness in which the malfunction occurred in Step 25:
• Open circuit in wiring harness between door latch switch and BCM
• Short to ground in wiring harness between liftgate/trunk lid latch switch and BCM
Repair or replace the suspected wiring harness.
|
||
|
27
|
Switch the ignition to ON.
Access the SAS control module PID BUCKLE_D using the M-MDS.
Is the BUCKLE_D PID value congruent with the seat belt condition?
|
Yes
|
Go to Step 29.
|
|
No
|
Go to the next step.
|
||
|
28
|
Inspect the driver-side buckle switch.
(See BUCKLE SWITCH INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the driver-side buckle switch.
|
|
No
|
Repair or replace the wiring harness between driver-side buckle switch and SAS control module terminal 2M for a possible short to ground.
|
||
|
29
|
Position the advanced key in the same position as when the malfunction occurred.
Can the engine be started?
|
Yes
|
Go to Step 31.
|
|
No
|
Go to the next step.
|
||
|
30
|
Inspect the wiring harness between keyless antenna and keyless control module for a short or open circuit when the malfunction occurred and the advanced key was not in the operable range.
Is there any malfunction?
|
Yes
|
Repair or replace the wiring harness for a possible a short or open circuit.
|
|
No
|
Replace the applicable keyless antenna.
|
||
|
31
|
Start the engine and it at idle.
Access the BCM PID STEER ANGL and EHPAS PID STEER_RATE using the M-MDS.
Is the PID value normal?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to Step 33.
|
|
No
|
Go to the next step.
|
||
|
32
|
Inspect the steering angle sensor.
Is there any malfunction?
|
Yes
|
Replace the steering angle sensor.
|
|
No
|
Inspect the wiring harness between the following terminals for a short or open circuit:
• Steering angle sensor terminal A—BCM terminal 2E
• Steering angle sensor terminal B—BCM terminal 2H
• Steering angle sensor terminal C—BCM terminal 2I
• Steering angle sensor terminal D—BCM terminal 2F
• Steering angle sensor terminal E—BCM terminal 2D
• Steering angle sensor terminal F—BCM terminal 2G
Repair or replace the suspected wiring harness.
|
||
|
33
|
Switch the ignition to ON.
Access the BCM PID R_DEF_SW using the M-MDS.
Does the R_DEF_SW PID value change according to the defroster switch operation?
(See PID/DATA MONITOR TABLE [BCM].)
|
Yes
|
Go to the next step.
|
|
No
|
Replace the climate control unit.
|
||
|
34
|
Start the engine.
Operate the panel switch to switch to the defroster mode.
Does the display on the information display match the panel switch operation?
|
Yes
|
Go to Step 36.
|
|
No
|
Go to the next step.
|
||
|
35
|
Inspect the information display.
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Replace the climate control unit.
|
||
|
36
|
Idle the engine.
Access the PCM PID BBP using the M-MDS with the brake pedal held depressed while the i-stop function is operating.
Does the BBP PID value remain less than −45 kPa {−0.46 kgf/cm2, −6.5 psi}?
|
Yes
|
Go to Step 39.
|
|
No
|
Go to the next step.
|
||
|
37
|
Perform the vacuum function inspection for the power brake unit and the vacuum loss inspection.
(See POWER BRAKE UNIT INSPECTION.)
Is there any malfunction?
|
Yes
|
Repair or replace the malfunctioning part according to the inspection results.
|
|
No
|
Go to the next step.
|
||
|
38
|
Inspect the power brake unit vacuum sensor.
(See POWER BRAKE UNIT INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the power brake unit vacuum sensor.
|
|
No
|
Inspect the wiring harness between the following terminals for a short or open circuit:
• Power brake unit vacuum sensor terminal A—PCM terminal 1P
• Power brake unit vacuum sensor terminal B—PCM terminal 1Q
• Power brake unit vacuum sensor terminal C—PCM terminal 1N
Repair or replace the suspected wiring harness.
|
||
|
39
|
Switch the ignition to ON.
Access the PCM PID BOO using the M-MDS.
Does the BOO PID value change according to the brake pedal operation?
|
Yes
|
Go to Step 41.
|
|
No
|
Go to the next step.
|
||
|
40
|
Inspect the brake switch.
(See BRAKE SWITCH INSPECTION.)
Is there any malfunction?
|
Yes
|
Replace the brake switch.
|
|
No
|
Open circuit in wiring harness between brake switch and PCM terminal 1AB.
Repair or replace the suspected wiring harness.
|
||
|
41
|
Inspect the brake fluid pressure sensor.
Is there any malfunction?
|
Yes
|
Replace the DSC HU/CM.
|
|
No
|
Go to the next step.
|
||
|
42
|
Measure the voltage at the climate control unit terminal 1G when the driver-side temperature setting is MAX HOT and MAX COLD.
Is the voltage normal?
|
Yes
|
Go to Step 44.
|
|
No
|
Go to the next step.
|
||
|
43
|
Inspect the driver-side air mix actuator.
Is there any malfunction?
|
Yes
|
Replace the driver-side air mix actuator.
|
|
No
|
Inspect the air mix actuator and linkage for sticking.
Repair or replace the malfunctioning part according to the inspection results.
|
||
|
44
|
Access the climate control unit PID CABIN TEMP using the M-MDS.
Does the CABIN TEMP PID value indicate the actual cabin temperature of the vehicle?
|
Yes
|
Replace the PCM.
|
|
No
|
Go to the next step.
|
||
|
45
|
Inspect the cabin temperature sensor.
Is there any malfunction?
|
Yes
|
Replace the cabin temperature sensor.
|
|
No
|
Inspect the wiring harness between the following terminals for a short or open circuit:
• Cabin temperature sensor terminal D—Climate control unit terminal 2M
• Cabin temperature sensor terminal B—Climate control unit terminal 2N
• Cabin temperature sensor terminal A—Relay block terminal 1F (IG2)
• Cabin temperature sensor terminal C—Body ground
Repair or replace the suspected wiring harness.
|
||
|
46
|
Verify the test results.
• If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR 2.0 DISI i-stop].)
• If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
|
||