DTC P1705: Short In Transmission Range Switch Circuit

WARNING: This page is about a different car, the 2004 Honda Odyssey, 2003 Honda Odyssey, and 2002 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Record all freeze data and review General Troubleshooting Information (see General Troubleshooting Information ) before you troubleshoot. This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

Turn the ignition switch ON (II).
Shift to all positions other than R.
Measure the voltage between PCM connector terminals D6 and B20 or B22.
Is there battery voltage?

YES - Go to step 4.

NO - Check for a short in the wire between PCM connector terminal D6 and the transmission range switch or A/T gear position indicator, and check for an open in the wires between PCM connector terminals B20 and B22 and body ground (G101). If the wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

Fig 1: Measuring Voltage Between PCM Connector Terminals D6 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Shift to all positions other than P or N.
Measure the voltage between PCM connector terminals B14 and B20 or B22.
Is there about 5 V?

YES - Go to step 6.

NO - Check for a short in the wire between PCM connector terminal B14 terminal and the transmission range switch. If the wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

Fig 2: Measuring Voltage Between PCM Connector Terminals B14 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Shift to all positions other than D.
Measure the voltage between PCM connector terminals D9 and B20 or B22.
Is there about 5 V?

YES - Go to step 8.

NO - Check for a short in the wire between PCM connector terminal D9 and the transmission range switch or A/T gear position indicator. If the wire is OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

Fig 3: Measuring Voltage Between PCM Connector Terminals D9 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Shift to all positions other than D3.
Measure the voltage between PCM connector terminals D8 and B20 or B22.
Is there battery voltage?

YES - Go to step 10.

NO - Check for a short in the wire between PCM connector terminal D8 and the transmission range switch or A/T gear position indicator. If the wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

Fig 4: Measuring Voltage Between PCM Connector Terminals D8 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Shift to all positions other than 2.
Measure the voltage between PCM connector terminals D14 and B20 or B22.
Is there battery voltage?

YES - Go to step 12.

NO - Check for a short in the wire between PCM connector terminal D14 and the transmission range switch or A/T gear position indicator. If the wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known good PCM and recheck.

Fig 5: Measuring Voltage Between PCM Connector Terminals D14 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Shift to all positions other than 1.
Measure the voltage between PCM connector terminals D15 and B20 or B22.
Is there battery voltage?

YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

NO - Check for a short in the wire between PCM connector terminal D15 and the transmission range switch or A/T gear position indicator. If the wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.

Fig 6: Measuring Voltage Between PCM Connector Terminals D15 & B20 Or B22
Courtesy of AMERICAN HONDA MOTOR CO., INC.