Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 29

1A-63 Engine General Information and Diagnosis: For Petrol Engine Model

Malfunction Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop (but
Engine Can Be Started)

S6JB0A1114011

Wiring Diagram

Circuit Description
When the ignition switch is turned ON, ECM causes the main relay to turn ON (close the contact point). Then, ECM
being supplied with the main power, transmits indication ON signal of malfunction indicator lamp (MIL) to combination
meter in order to turn MIL ON. And then, combination meter turns MIL ON. When the engine starts to run and no
malfunction is detected in the system, ECM transmits MIL indication OFF signal to combination meter in order to turn
MIL OFF. And then, combination meter turns MIL OFF, but if a malfunction was or is detected, MIL remains ON even
when the engine is running.

BLK/WHT

BLU/BLK

WHT/GRN

BLK/RED

BLK/YEL

BLU

12V

WHT/RED

WHT/BLU

WHT/RED

WHT/BLU

E23-29

E23-4

E23-1

E23-60

E23-19

E23-16

[A]

E23

C37

47 46

14
29

54 53

15
30

32 31

39 38

47 46

14
29

54 53

15
30

32 31

39 38

[B]

PPL/RED

C37-15

C37-29
C37-48

BLK/ORN

C37-58

C37-30 BLK/ORN

BLK/YEL
BLK/YEL
BLK/YEL

1615141312

2221201918

G28

WHT

RED

WHT

RED

BLK

G28-15

G28-13

I5JB0A110025-02

[A]: ECM connector (viewed from harness side)

7. ECM

[B]: Combination meter connector (viewed from harness side)

8. Junction block

1. Fuse box No.2

9. ABS / ESP

® control module

2. Ignition switch

10. “FI” fuse

3. Main relay

11. “IGN” fuse

4. Malfunction indicator lamp in combination meter

12. CAN communication line

5. “IG COIL” fuse

13. To other control module (TCM (for A/T model), BCM, 4WD control module (if

equipped), steering angle sensor (for vehicle with ESP

®) and keyless start control

module (if equipped))

6. “METER” fuse

Engine General Information and Diagnosis: For Petrol Engine Model 1A-64

Troubleshooting

NOTE

• Before performed troubleshooting, be sure to read the “Precautions of ECM Circuit Inspection: For

Petrol Engine Model”.

• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the

special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits: For
Petrol Engine Model”.

Step

Action

Yes

MIL power supply check
1) Turn ignition switch to ON position.

Do other warning lights come ON?

Go to Step 2.

Go to Step 5.

DTC check
1) Connect scan tool to DLC with ignition switch turned

OFF.

2) Turn ON ignition switch and check DTC.

Is there DTC(s) P1674 and/or P1685?

Go to applicable DTC
diag. flow.

Go to Step 3.

DTC check in ABS / ESP

® control module assembly

1) Check DTC in ABS / ESP

® control module assembly.

Is there DTC(s) U1073 and/or U1100?

Go to applicable DTC
diag. flow.

Go to Step 4.

DTC check in BCM
1) Check DTC in BCM.

Is there DTC U1100?

Go to applicable DTC
diag. flow.

Substitute a known-
good combination meter
and recheck. If MIL still
remains OFF, substitute
a known-good ECM and
recheck.

CAN communication line circuit check
1) Check CAN communication circuit between combination

meter and ECM, TCM (for A/T model), ABS / ESP

control module, 4WD control module (if equipped),
keyless start control module (if equipped) referring to
Step 9 to 15 of “DTC P1674: CAN Communication (Bus
Off Error): For Petrol Engine Model”

Is circuit in good condition?

Go to Step 6.

Repair or replace.

“METER” fuse check
1) Turn ignition switch to OFF position.
2) Check for fuse blown at “METER” fuse in junction block.

Is “METER” fuse in good condition?

Go to Step 7.

Replace “METER” fuse
and check for short.

Combination meter power supply check
1) Remove combination meter referring to “Combination

Meter Removal and Installation in Section 9C”.

2) Check for proper connection to combination meter

connector at “G28-13” and “G28-15” terminals.

3) If OK, then turn ignition switch to ON position and

measure voltage between combination meter connector
at “G28-13” terminal and vehicle body ground.

Is it 10 – 14 V?

Go to Step 8.

“PPL/RED” wire is open
circuit.

1A-65 Engine General Information and Diagnosis: For Petrol Engine Model

Malfunction Indicator Lamp Remains ON after Engine Starts

S6JB0A1114012

Wiring Diagram
Refer to “Malfunction Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop (but Engine Can
Be Started): For Petrol Engine Model”.

Troubleshooting

NOTE

• Before performed troubleshooting, be sure to read the “Precautions of ECM Circuit Inspection: For

Petrol Engine Model”.

• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the

special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits: For
Petrol Engine Model”.

Combination meter circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “G28-15” terminal of

combination meter connector and vehicle body ground.

Is resistance 1

Ω

or less?

Substitute a known-
good combination meter
and recheck. If MIL still
remains OFF, substitute
a known-good ECM and
recheck.

“BLK” wire is open or
high resistance circuit.

Step

Action

Yes

Step

Action

Yes

DTC check
1) Start engine and recheck DTC of ECM and TCM (for A/T

model) while engine running.

Is there any DTC(s)?

Go to Step 2 of “Engine
and Emission Control
System Check: For
Petrol Engine Model”,
Step 2 of “A/T System
Check in Section 5A”.

Go to Step 2.

CAN communication line circuit check
1) Check CAN communication line circuit between

combination meter and ECM, TCM (for A/T model), ABS
/ ESP

® control module, 4WD control module (if

equipped), keyless start control module (if equipped)
referring to Step 9 to 15 “DTC P1674: CAN
Communication (Bus Off Error): For Petrol Engine
Model”.

Is circuit in good condition?

Substitute a known-
good combination meter
and recheck. If MIL still
remains ON, substitute
a known-good ECM and
recheck.

Repair or replace CAN
communication circuit.

Engine General Information and Diagnosis: For Petrol Engine Model 1A-66

DTC P0010: Camshaft Position Actuator Circuit (For M16 Engine)

S6JB0A1114013

System and Wiring Diagram

Circuit Description
Actual valve timing fails to become close to target advance level of each function although advance control function or
retarded advance control function is at work.

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) Clear DTC. Refer to “DTC Clearance: For Petrol Engine Model”.
2) Start engine and keep it at idle for 10 seconds.
3) Check DTC. Refer to “DTC Check: For Petrol Engine Model”.

C37-30

[A]:

C37-15

C37-29

C37-48

C37-58

BLK/ORN

RED

YEL

BRN/WHT

BRN/YEL

C37-60

C37-59

E23

C37

14
29

54 53

15
30

39 38

14
29

54 53

15
30

39 38

BLK/YEL

I5JB0A110026-01

[A]: Oil flow

3. Camshaft timing sprocket

6. Oil pan

1. Oil control valve

4. Oil filter

7. Intake camshaft

2. ECM

5. Oil pump

DTC detecting condition

Trouble area

Monitored voltage of oil control valve drive pulse is different
from its command signal. (Circuit open or short)
(1 driving cycle detection logic)

• Oil control valve
• Oil control valve circuit
• ECM

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