1998 Honda Passport code P0337

Hi kithcart,

Here is a description and diagnosis.

DTC P0337: CRANKSHAFT POSITION (CKP) SENSOR CIRCUIT/LOW FREQUENCY

NOTE: 58X reference signal is produced by CKP sensor.

Diagnostic Aids
An intermittent may be caused by a poor connection, rubbed through wire insulation or a broken wire inside insulation. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal -to-wire connection, and damaged harness. Connect voltmeter to 58X reference circuit (Yellow wire) and wiggle harness and connectors. A change in voltage will indicate area of problem. If DTC cannot be duplicated, check scan tool FAILURE RECORDS to determine mileage since last DTC was set.

1. Perform On-Board Diagnostic (OBD) System Check. Read and record FREEZE FRAME and/or FAIL RECORDS data for each DTC set. Go to next step.

2. Attempt to start engine. If engine starts and runs, go to next step. If engine does not start and run, see BASIC TESTING article.

3. Using scan tool, clear DTC P0337. Start engine and allow it to idle for one minute. Read DTCs. If DTC P0337 resets, go to next step. If DTC P0337 does not reset, check for an intermittent problem, see DIAGNOSTIC AIDS.

4. Turn ignition off and disconnect CKP sensor. Turn ignition on. Connect a voltmeter between 5- volt reference and sensor ground terminals at harness connector. If reading is 4-6 volts, go to step 7). If reading is not 4-6 volts, go to next step.

5. Backprobe voltmeter between PCM harness connector 5-volt reference circuit (Brown wire - 3.2L, Yellow/Red wire - 3.5L) and ground terminals. If reading is 4-6 volts, go to next step. If reading is not 4-6 volts, go to step 10).

6. Check CKP sensor 5-volt reference circuit (Brown wire - 3.2L, Yellow/Red wire - 3.5L) and ground circuit (Green wire) between CKP sensor and PCM for an open, short to ground or short to power. Repair as necessary. Retest system.

7. Turn ignition off and disconnect PCM and CKP sensor harness connectors. Check for an open or short to ground in 58X reference circuit (Yellow wire) between CKP sensor connector and PCM harness connector. If a problem is found, repair as necessary. Retest system. If no problem is found, go to next step.

8. Reconnect PCM and CKP sensor harness connectors. Using voltmeter, measure voltage of 58X reference circuit (Brown wire - 3.2L, Yellow/Red wire - 3.5L) at PCM harness connector while cranking engine. If reading is about 2.5 volts, go to step 10). If reading is not about 2.5 volts, go to next step.

9. Inspect connections at CKP sensor. Repair connections as necessary. If connections are okay, replace CKP sensor. Retest system.

10. Inspect connections at PCM. Repair connections as necessary. If connections are okay, replace PCM. Retest system.