POWER RELAY REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop]

• If the number of times the power relay can operate exceeds the limit, or If there is any malfunction of the i-stop system-related parts, the i-stop warning light (amber) flashes. In addition, DTCs are stored simultaneously.

• To ensure reliability of the i-stop system, replace the power relay with a new one if the number of times the power relay can operate has exceeded the upper limit.

• When replacing the power relay, perform the following procedure. When replacing the PCM simultaneously, perform the PCM configuration first. (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) (See PCM CONFIGURATION [MZR 2.0 DISI i-stop].)

STEP

ACTION

NOTE

1

Replace the power relay.

—

2

Reset the number of times the power relay can operate using the M-MDS.

(See OPERATION AMOUNT RESET PROCEDURE [MZR 2.0 DISI i-stop].)

Verify the i-stop warning light (amber).

•  If it flashes, go to the next step.

•  If it does not flash, go to Step 4.

—

3

Clear applicable DTCs using the M-MDS.

(See DTC TABLE [MZR 2.0 DISI i-stop].)

(See AFTER REPAIR PROCEDURE [MZR 2.0 DISI i-stop].)

—

4

Close the bonnet.

•  Because the sub battery recharge is not available while the bonnet is open, the procedure is not completed.

5

Warm up the engine. (no electrical load)

—

6

Switch the ignition off.

—

7

Long-press the i-stop OFF switch for 3 s within 5 s after switching the ignition ON.

—

8

Start the engine.

—

9

Press the i-stop OFF switch.

Verify that the i-stop indicator light (green) flashes.

•  If it does not flash, go back to Step 7.

—

10

Maintain the idle status (no electrical load) until the i-stop indicator light (green) turns off.

•  For operating i-stop, learning is required for the following two items:

Initial learning/recharging for battery charge condition

―  If the engine is left idling, the operation time differs depending on the battery charge condition, however, a maximum of approx. 60 min. is required to finish the operation.
(Battery charge condition can be verified using data logger function in M-MDS.)

ISC learning

―  ISC learning is performed by leaving the engine idling for approx. 10 min. when the vehicle is warmed up and there is no load on the engine.

•  If the above two operations are successfully completed, the i-stop indicator light (green) turns off.

11

Verify that the engine stops via the i-stop control and then restarts.

•  If it cannot be verified, inspect the i-stop system-related units for DTCs.

―  PCM (See DTC TABLE [MZR 2.0 DISI i-stop].)

―  ABS HU/CM (with ABS) (See ON-BOARD DIAGNOSIS [ABS].)

―  DSC HU/CM (with DSC) (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

―  TCM (ATX) (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FS5A-EL].)

―  EHPAS control module (See ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS) ON-BOARD DIAGNOSIS.)

―  Climate control unit (with full-auto air conditioner) (See DTC TABLE [FULL-AUTO AIR CONDITIONER].)

―  Keyless control module (with advanced keyless entry and push button start system) (See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

―  BCM (See DTC TABLE [BCM].)

Note

•  When checking that the engine stops and restarts, verify vehicle conditions that meet the i-stop permit conditions.

12

Switch the ignition off, and start the engine.

•  The display function for the i-stop indicator light (green) is reset.

STEP	ACTION	NOTE
1	Replace the power relay.	—
2	Reset the number of times the power relay can operate using the M-MDS. (See OPERATION AMOUNT RESET PROCEDURE [MZR 2.0 DISI i-stop].) Verify the i-stop warning light (amber). • If it flashes, go to the next step. • If it does not flash, go to Step 4.	—
3	Clear applicable DTCs using the M-MDS. (See DTC TABLE [MZR 2.0 DISI i-stop].) (See AFTER REPAIR PROCEDURE [MZR 2.0 DISI i-stop].)	—
4	Close the bonnet.	• Because the sub battery recharge is not available while the bonnet is open, the procedure is not completed.
5	Warm up the engine. (no electrical load)	—
6	Switch the ignition off.	—
7	Long-press the i-stop OFF switch for 3 s within 5 s after switching the ignition ON.	—
8	Start the engine.	—
9	Press the i-stop OFF switch. Verify that the i-stop indicator light (green) flashes. • If it does not flash, go back to Step 7.	—
10	Maintain the idle status (no electrical load) until the i-stop indicator light (green) turns off.	• For operating i-stop, learning is required for the following two items: Initial learning/recharging for battery charge condition ― If the engine is left idling, the operation time differs depending on the battery charge condition, however, a maximum of approx. 60 min. is required to finish the operation. (Battery charge condition can be verified using data logger function in M-MDS.) ISC learning ― ISC learning is performed by leaving the engine idling for approx. 10 min. when the vehicle is warmed up and there is no load on the engine. • If the above two operations are successfully completed, the i-stop indicator light (green) turns off.
11	Verify that the engine stops via the i-stop control and then restarts. • If it cannot be verified, inspect the i-stop system-related units for DTCs. ― PCM (See DTC TABLE [MZR 2.0 DISI i-stop].) ― ABS HU/CM (with ABS) (See ON-BOARD DIAGNOSIS [ABS].) ― DSC HU/CM (with DSC) (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) ― TCM (ATX) (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FS5A-EL].) ― EHPAS control module (See ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS) ON-BOARD DIAGNOSIS.) ― Climate control unit (with full-auto air conditioner) (See DTC TABLE [FULL-AUTO AIR CONDITIONER].) ― Keyless control module (with advanced keyless entry and push button start system) (See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) ― BCM (See DTC TABLE [BCM].)	Note • When checking that the engine stops and restarts, verify vehicle conditions that meet the i-stop permit conditions.
12	Switch the ignition off, and start the engine.	• The display function for the i-stop indicator light (green) is reset.