P1705
DTC P1705: Short in Transmission Range Switch Circuit
NOTE: Record all freeze data before you troubleshoot.
NOTE: PGM-FI Main Relay Sticks in ON Position
On 1998-2002 Accords with A/T, if the PGM-FI main relay sticks in the ON position after you trun the ignition switch to LOCK (0), the PCM can repeatedly set these A/T DTCs:
- P0753 (shift solenoid valve A)
- P0758 (shift solenoid valve B)
- P1705 (transmission range switch short to ground)
- P1768 (A/T clutch pressure control solenoid valve A)
To check for a sticking PGM-FI main relay, here's what you do:
1. Connect the PGM Tester to the 16P data link connector.
2. Turn the ignition switch to LOCK (0), and watch the PGM Tester display screen. You should see the message NO COMMUNICATION as soon as you turn the key to LOCK (0).
- If you see the NO COMMUNICATION message, the main relay is OK. Continue with normal troubleshooting.
- If you don't see the NO COMMUNICATION message, and there's continued communication with the PCM, the main relay is defective and must be replaced.
Normal Troubleshooting
1. Turn the ignition switch ON (II).
2. Observe the A/T gear position indicator, and shift each position separately.
Do any indicators stay on when the shift lever is not in that position?
YES - Go to step 3.
NO - The system is OK at this time. Check the wire harness for damage.
3. Disconnect the transmission range switch connector.
Do all gear position indicators go out?
YES - Replace the transmission range switch.
NO - Go to step 4.
4. Turn the ignition switch OFF, and connect the transmission range switch connector.
5. Turn the ignition switch ON (II).
6. Shift to all positions other than R.
7. Measure the voltage between the D6 and B20 or B22 terminals.
Is there battery voltage?
YES - Go to step 8.
NO - Check for short in the wire between the D6 terminal and the transmission range switch or A/T gear position indicator, and check for an open in the wires between the B20 and B22 terminals and body ground (G101). If wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
8. Shift to all positions other than E1.
9. Measure ATP NP voltage between these terminals:
- '98-99 models: Between terminals D13 and B20 or B22.
- '00-02 models: Between terminals B14 and B20 or B22.
'98-99 models:
'00-02 models:
Is there about 5 V?
YES - Go to step 10.
NO - Check for short in the wire between the D13 terminal and the transmission range switch, and in the P and N position signal wires between the A/T gear position indicator and the transmission range switch. If wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
10. Shift to all positions other the D4.
11. Measure the voltage between the D9 and B20 or B22 terminals.
Is there about 5 V?
YES - Go to step 12.
NO - Check for short in the wire between the DO terminal and the transmission range switch. If wire is OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
12. Shift to all positions other than D4.
13. Measure the voltage between the D8 and B20 or B22 terminals.
Is there battery voltage?
YES - Go to step 14.
NO - Check for short in the wire between the D8 terminal and the transmission range switch or VT gear position indicator. If wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
14. Shift to all positions other than 2.
15. Measure the voltage between the D14 and B20 or B22 terminals.
Is there battery voltage?
YES - Go to step 16.
NO - Check for short in the wire between the D14 terminal and the transmission range switch or A/T gear position indicator. If wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
16. Shift to all positions other than 1.
17. Measure the voltage between the D15 and B20 or B22 terminals.
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 short in the wire between the D15 terminal and the transmission range switch or A/T gear position indicator. If wires are OK, check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.