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Geely Emgrand X7. Manual part - 48
(a) Connect fault diagnosis tester to the vehicle diagnostic interface. (b) Turn ignition switch to ON position. (c) Press the fault diagnosis tester power button. (d) Select the following menu items: Engine/Read DTC codes. (e) Read DTC codes. Results DTC Codes Shown To Step DTC other than P0131, P0133, P0134 No P0131. P0133. P0134 Yes
Step 8 Measure Pre-Sensor Signal Circuit
(a) Rotated ignition switch to OFF position . (b) Disconnect front oxygen sensor harness connector EM04. (c) Rotated ignition switch to ON position . (d) Measure the voltage value between the front oxygen sensor Standard Voltage: 0.35-0.5V (e) Connect front oxygen sensor harness connector EM04. 前氧传感器线束连接器 EM04 A B C D NL02-0040c Is voltage the specified value?
Step 9 Measure pre-catalytic oxygen sensor ground circuit. (a) Rotated ignition switch to OFF position. (b) Disconnect front oxygen sensor harness connector EM04. (c) Rotated ignition switch to ON position. (d) Measure resistance between front oxygen sensor EM04 terminals A and a reliable ground. Standard Resistance: Less than 1 Ω No Go to step 11 Yes No Refer to 2.12.7.14 DTC Chapter Index. Yes Front oxygen sensor harness connectorEM04 191 |