Mechanic

BHOLAHSANJAY

MEMBER
2002 HONDA CIVIC
4 CYL
2WD
AUTOMATIC
85,000 MILES

Where is the code p1158 for honda civic year 2002 1.6. What is means by the word powertrain

Thursday, February 3rd, 2011 AT 5:37 PM

1 Reply

KHLOW2008

MECHANIC
41,814 POSTS

http://en.wikipedia.org/wiki/Powertrain

The above explains what powertrain means. PCM = Powertrain Control Module, meaning the engine computer for automatic transmission vehicles.

DTC P1158: A/F SENSOR (SENSOR 1) AFS-TERMINAL LOW VOLTAGE

1. Reset the ECM/PCM.
2. Start the engine.
Is DTC P1158 indicated?

YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and at the ECM/PCM.

3. Turn the ignition switch OFF.

4. Disconnect the A/F sensor (Sensor 1) 4P connector, and ECM/PCM connector A (31P).

5. Check for continuity between ECM/PCM connector terminal A16 and body ground.

Fig. 105: Checking Continuity Between ECM/PCM Connector Terminal A16 & Body Ground

Is there continuity?

YES - Repair short in the wire between the A/F sensor (Sensor 1) and the ECM/PCM (A16).

NO - Go to step 6.

6. Substitute a known-good A/F sensor (Sensor 1) and recheck.
Is DTC P1158 indicated?

YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.

NO - Replace the A/F sensor (Sensor 1).

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