Chery A15. Manual — part 262

The major functions of this diagnostic instrument include reading the system’s working
data flow and system information, temporarily controlling and checking the system
components and reading or eliminating troubleshooting codes.
3. Troubleshooting code table

Troubleshooting code

Fault
Overpressure in the air intake manifold

P0105

Underpressure in the air intake manifold
Under temperature in the air intake manifold

P0110

Over temperature in the air intake manifold
Under temperature of cooling fluid (short circuit or
open circuit with the storage battery)

P0115

Over temperature of cooling fluid (short circuit with
the ground)
Over height of the throttle (short circuit or open
circuit with the storage battery)

P0120

Under height of the throttle (short circuit with the
ground)

P0130

No signal from the oxygen sensor
High AFR for too long from the oxygen sensor

P0170

Low AFR for too long from the oxygen sensor

P0201

Spray nozzle A (first cylinder) circuit fault

P0202

Spray nozzle B (third cylinder) circuit fault

P0203

Spray nozzle C (fourth cylinder) circuit fault

P0204

Spray nozzle D (second cylinder) circuit fault
Short circuit between the fuel pump relay and the
storage battery

P0230

Short circuit or open circuit between the fuel pump
relay and the ground
No signal from 58x crank sensor

P0335

Faulty signal from 58x crank sensor
Long and low signal from camshaft sensor

P0342

Long and high signal from camshaft sensor
Short circuit between Coil 1-4 and storage battery

P0351

Short circuit or open circuit between Coil 1-4 and the
ground
Short circuit between Coil 2-3 and storage battery

P0352

Short circuit or open circuit between Coil 2-3 and the
ground

Continued

Short circuit between charcoal canister solenoid valve and
storage battery

P0443

Short circuit or open circuit between charcoal canister
solenoid valve and the ground
Short circuit between Fan 1 and the storage battery

P0480

Short circuit or open circuit between Fan 1 and the ground
Short circuit between Fan 2 and the storage battery

P0481

Short circuit or open circuit between Fan 2 and the ground

P0500

No signal from the car speed sensor

P0505

Idle speed control fault

P0560

Overvoltage of the storage battery

P0607

Knock control system fault
Short circuit between the fault indicator light and the
storage battery

P0650

Short circuit or open circuit between the fault indicator
light and the ground
Short circuit between the air conditioner relay and the
storage battery

P1530

Short circuit or open circuit between the air conditioner
relay and the ground

P1604

EEPROM memory fault

P1605

FLASH memory fault

4. Troubleshooting code elimination
(1) Eliminate the troubleshooting codes with a diagnostic instrument;
(2) Disconnect the battery cathode for over 3 minutes (the engine needs initialization
setup).

Section Two. Interpretation of Troubleshooting Codes

One. Troubleshooting code – manifold absolute pressure
1. Troubleshooting code setup conditions and emergency scheme

P0105 Signal from air intake

manifold pressure sensor is too high

P0105 Signal from air intake manifold

pressure sensor is too low

- Engine running

- No TPS fault

- No TPS fault

- MAP > 14.017kpa

- MAP > 98.117kpa

- RPM < 1050rpm

- TPS < 19.141%

- TPS > 18.75%

Ju

dg

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en

t

co

nd

iti

on

s

- Fault duration > 2.5s

Ju

dg

m

en

t

co

nd

iti

on

s

- Fault duration > 2.5s

Turn on the fault indicator

ght until the fault is eliminated

li

Turn on the fault indicator

ght until the fault is eliminated

li

Engine stops: 90kPa

Engine stops: 90kPa

Engine idle speed:

≈ 45kPa

Engine idle speed:

≈ 45kPa

- E

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er

ge

nc

y

co

ntr

ol

sc

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Engine running: manifold

pressure changes with throttle
opening

- E

m

er

ge

nc

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co

ntr

ol

sc

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e

Engine running: manifold

pressure changes with throttle
opening

2. Relevant computer terminals

Wiring terminal

ECM

Pressure/temperature
sensor

Normal measurement signal

5V reference voltage 27

B

5V

Manifold pressure
signal

25 A

0.5～4.5V

Sensor signal ground 28

D

0V

3. Troubleshooting procedure

Step Description

Yes

No

1

Will the troubleshooting procedure be
implemented?

To Step 2

Troubleshooting
procedure

2

Check if relevant equipment show any of the
following:
• The vacuum hose on the manifold is

detached, damaged or suffers any bad
contact

• Air intake manifold found of air leakage
• Throttle leakage
Is there any of the above?

Confirm
repair

To Step 3

3

Unfix the sensor fittings
Check if the absolute pressure is close to
0.103bar (0V) with an ADC 2000 diagnostic
instrument.

To Step 5

To Step 4

4

Check the sensor signal circuit and if the
circuit between the sensor and the ECM
suffers any short circuit with the power source
(anode).

Confirm
repair

To Step 11

5

Check the sensor signal circuit and if the
circuit between the sensor and the ECM
suffers any of the following:
• Ground fault (Ω stage)
• Open circuit (Ω stage)
Is there any of the above?

Confirm
repair

To Step 6

6

Check the 5V reference voltage and if the
circuit between the sensor and the ECM
suffers any of the following:
• Ground fault (Ω stage)
• Open circuit (Ω stage)
• Short circuit with the power source (anode):

(Voltage stage)

Confirm
repair

To Step 7

7

Turn off the ignition switch
Create a short circuit between the sensor signal
terminal (Terminal B) and the ECM reference
voltage terminal (Terminal C). Turn on the
ignition switch and observe if the ADC2000
diagnostic instrument displays an absolute
voltage of 1.04bar (5V)?

To Step 8

To Step 11